The volume of the prism is 2.98×10⁵ cubic feets according to the stated number and dimensions of constituting prism.
The volume of any shape is it's capacity to contain the item in it. It is the product of all its sides.
Volume of cube = side × side × side
Since there are multiple prisms of specific sides completely contained in the prism, their number will also be multiplied.
Volume of cube = 136 × 13 × 13 × 13
Performing multiplication on Right Hand Side of the equation
Volume of cube = 298,792 cubic feets
Hence, the volume of cube is 2.98×10⁵ cubic feet.
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In a group of 20 people, 13 people like tea, 12 people like coffee and 3 people like neither tea nor coffee. How many people like tea but not coffee?
Answer:
8 people
Step-by-step explanation:
Tea- 13 people
Coffee- 12 people
Neither- 3 people
20 - 3 = 17
12 + 13 = 25
25 - 17 = 8
Calculate the second and third derivatives. y = 4x4 - 3x² + 7x y yⁿ= yᵐ=
The second derivative yⁿ (y'') is 48x² - 6, and the third derivative yᵐ (y''') is 96x.
To calculate the second and third derivatives of the function y = 4x^4 - 3x² + 7x:
1. First, calculate the first derivative, y':
y' = dy/dx = (d/dx)(4x^4 - 3x² + 7x)
Using the power rule for derivatives, we get:
y' = 16x³ - 6x + 7
2. Now, calculate the second derivative, y'' (also denoted as yⁿ when n=2):
y'' = d²y/dx² = (d/dx)(16x³ - 6x + 7)
Applying the power rule again:
y'' = 48x² - 6
3. Finally, calculate the third derivative, y''' (also denoted as yᵐ when m=3):
y''' = d³y/dx³ = (d/dx)(48x² - 6)
Using the power rule one more time:
y''' = 96x
So, the second derivative yⁿ (y'') is 48x² - 6, and the third derivative yᵐ (y''') is 96x.
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En un almacén hay tres cajas de productos. La primera contiene 20 productos, de los cuales 3 son defectuosos, en la segunda hay 16 productos, con 2 defectuosos, y en la tercera caja hay 10 productos, sin productos defectuosos ¿Cuál es la probabilidad de sacar un producto defectuoso al azar?
La probabilidad de sacar un producto defectuoso al azar de las tres cajas es aproximadamente 0.0917, o un 9.17%.
La probabilidad de sacar un producto defectuoso al azar de las tres cajas se puede calcular utilizando la fórmula de la probabilidad.
Primero, calculemos la probabilidad de sacar un producto defectuoso de cada caja:
1. En la primera caja, hay 3 productos defectuosos entre 20 productos en total. La probabilidad es 3/20.
2. En la segunda caja, hay 2 productos defectuosos entre 16 productos en total. La probabilidad es 2/16.
3. En la tercera caja, no hay productos defectuosos entre 10 productos en total. La probabilidad es 0/10.
Para encontrar la probabilidad total, sumamos las probabilidades de cada caja y luego dividimos por el número total de cajas:
(3/20 + 2/16 + 0/10) / 3 ≈ (0.15 + 0.125 + 0) / 3 ≈ 0.0917
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Every four years, countries from around the globe meet to
compete in the largest sporting event in the world, the Summer
Olympics. The tables show information about the history of
the Summer Olympics. Write each comparison as a fraction in
lowest terms, a decimal, and a percent.
1. United States medals to Soviet Union medals
2. Soviet Union medals to Great Britain medals
3. United States medals to Great Britain medals
4. The number of countries that have won
between 2,250 and 2,499 total medals to the
number of countries that have won between
0 and 249 total medals.
5. Only one country participating in the
Summer Olympics has never won a medal.
Write a comparison of the number of
countries that have never won a medal
to the number of participating countries.
Answer:
United States medals to Soviet Union medals:
Fraction: 1211/1010
Decimal: 1.198
Percent: 119.8%
Soviet Union medals to Great Britain medals:
Fraction: 1010/867
Decimal: 1.165
Percent: 116.5%
United States medals to Great Britain medals:
Fraction: 1211/867
Decimal: 1.397
Percent: 139.7%
The number of countries that have won between 2,250 and 2,499 total medals to the number of countries that have won between 0 and 249 total medals:
Fraction: 2/1
Decimal: 2
Percent: 200%
Only one country participating in the Summer Olympics has never won a medal. Write a comparison of the number of countries that have never won a medal to the number of participating countries:
Fraction: 1/205
Decimal: 0.00488
Percent: 0.488%
Step-by-step explanation =
United States medals to Soviet Union medals:
The fraction represents the ratio of medals won by the United States to those won by the Soviet Union. To find it, you can divide the number of medals won by the United States (1,211) by the number of medals won by the Soviet Union (1,010): 1211/1010.
To convert this fraction to a decimal, divide the numerator (1211) by the denominator (1010): 1.198.
To convert the decimal to a percent, multiply it by 100: 119.8%.
Soviet Union medals to Great Britain medals:
The fraction represents the ratio of medals won by the Soviet Union to those won by Great Britain. To find it, you can divide the number of medals won by the Soviet Union (1,010) by the number of medals won by Great Britain (867): 1010/867.
To convert this fraction to a decimal, divide the numerator (1010) by the denominator (867): 1.165.
To convert the decimal to a percent, multiply it by 100: 116.5%.
United States medals to Great Britain medals:
The fraction represents the ratio of medals won by the United States to those won by Great Britain. To find it, you can divide the number of medals won by the United States (1,211) by the number of medals won by Great Britain (867): 1211/867.
To convert this fraction to a decimal, divide the numerator (1211) by the denominator (867): 1.397.
To convert the decimal to a percent, multiply it by 100: 139.7%.
The number of countries that have won between 2,250 and 2,499 total medals to the number of countries that have won between 0 and 249 total medals:
The fractions represent the ratios of the number of countries that have won between two ranges of total medals. To find these fractions, you need to count the number of countries that fall into each range, and then divide one by the other. According to the information provided, there are 2 countries that have won between 2,250 and 2,499 total medals, and 1 country that has won between 0 and 249 total medals. So the fraction is 2/1.
To convert this fraction to a decimal, divide the numerator (2) by the denominator (1): 2.
To convert the decimal to a percent, multiply it by 100: 200%.
Only one country participating in the Summer Olympics has never won a medal. Write a comparison of the number of countries that have never won a medal to the number of participating countries:
The fraction represents the ratio of the number of countries that have never won a medal to the total number of participating countries. According to the information provided, only one country has never won a medal, and there are 205 participating countries. So the fraction is 1/205.
To convert this fraction to a decimal, divide the numerator (1) by the denominator (205): 0.00488.
To convert the decimal to a percent, multiply it by 100: 0.488%.
A particular fruits weight are normally disturbed, with a mean of 374 grams and a standard deviation of 20grams. the heaviest 20% of fruits weigh more than how many grams? answer to the nearest gram.
The weight of the heaviest 20% of fruits can be estimated using the z-score corresponding to the 80th percentile, which is 0.84.
The weight can be calculated by adding the z-score multiplied by the standard deviation to the mean weight. Therefore, the weight of the heaviest 20% of fruits is approximately 405 grams.
To calculate this, we first need to find the z-score for the 80th percentile, which is 0.84. Then, we can use the formula z = (x - mu) / sigma, where x is the weight we want to find, mu is the mean weight, and sigma is the standard deviation.
Rearranging this formula to solve for x, we get x = z * sigma + mu. Plugging in the values we have, we get x = 0.84 * 20 + 374 = 405.2 grams. Rounding this to the nearest gram, we get the answer of 405 grams.
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What is the scale factor for the similar figures below?
The value of the scale factor for the similar figures is 1/4
What is the scale factor for the similar figures?From the question, we have the following parameters that can be used in our computation:
The similar figures
The corresponsing sides of the similar figures are
Original = 8
New = 2
Using the above as a guide, we have the following:
Scale factor = New /Original
substitute the known values in the above equation, so, we have the following representation
Scale factor = 2/8
Evaluate
Scale factor = 1/4
Hence, the scale factor for the similar figures is 1/4
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Type the correct answer in each box. use numerals instead of words.
lab tests of a new drug indicate a 70% success rate in completely curing the targeted disease. the doctors at the lab created the random data in the table using representative simulation. the letter e stands for "effective," and n stands for "not effective.
the estimated probability that it will take at least five patients to find one patient on whom the medicine would not be effective is ______. the estimated probability that the medicine will be effective on exactly three out of four randomly selected patients is ______.
To find the estimated probability that it will take at least five patients to find one patient on whom the medicine would not be effective, we can use the geometric distribution. The probability of not curing the disease is 1 - 0.70 = 0.30.
Let X be the number of patients needed to find one patient on whom the medicine would not be effective. Then X follows a geometric distribution with p = 0.30. The probability that it will take at least five patients to find one patient on whom the medicine would not be effective is:
P(X ≥ 5) = (1 - p)^(5-1) = 0.7^4 ≈ 0.2401
Therefore, the estimated probability that it will take at least five patients to find one patient on whom the medicine would not be effective is approximately 0.2401.
To find the estimated probability that the medicine will be effective on exactly three out of four randomly selected patients, we can use the binomial distribution. Let X be the number of patients out of four who are cured by the medicine. Then X follows a binomial distribution with n = 4 and p = 0.70. The probability that the medicine will be effective on exactly three out of four randomly selected patients is:
P(X = 3) = (4 choose 3) * (0.70)^3 * (1 - 0.70)^(4-3) = 4 * 0.343 * 0.3^1 ≈ 0.4116
Therefore, the estimated probability that the medicine will be effective on exactly three out of four randomly selected patients is approximately 0.4116.
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please help with the question in the image !!
Answer:
image dosent load
Step-by-step explanation:
Answer:
a = 80°, b = 100°, c = 80°, d = 100°
Step-by-step explanation:
You know a + b + c + d = 360°.
Plugging b + c + d = 280° into the formula above:
a + 280° = 360°.
a = 80°.
You know a + d = 180° because of angles on a straight line. Solve for d:
80° + d = 180°.
d = 100°.
For the same reason, you know a + b = 180°. b must be equal to d, which is 100°.
Lastly, c + d = 180° because they make up the second line. Solve for c:
c + 100° = 180°.
c = 80°.
a = 80°, b = 100°, c = 80°, d = 100°.
Determine whether each statement regarding surface area is true, Select True or False for each
statement
1. The surface area of a cone is the sum of the areas of a circle and sector of a circle.
2. The surface area of a sphere is greater than a cube's with s=r.
3. A composite figure's surface area is the sum of each individual figure's surface area.
The first statement about the surface area in the question are false, the second statement about surface area is false and the third statement about surface area is true respectively.
1. False. The surface area of a cone is the sum of the areas of the circular base and the curved lateral surface.
2. False. The surface area of a sphere is given by 4πr^2, while the surface area of a cube with side length s=r is 6r^2. Since 4πr^2 is less than 6r^2 for any value of r, the surface area of a sphere is actually less than the surface area of such a cube.
3. True. The surface area of a composite figure is the sum of the surface areas of each individual figure that make up the composite figure.
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Abigail just measured her pet snake and found out it is 111 inches long. The last time she measured, the snake was 74 inches long. What percent longer is the pet snake now?
50% is the percentage the snake is longer if the new measurement is 111 inches and the previous one was 74 inches.
The growth percent refers to the percent of the growth in the length of the snake. It is calculated by the growth divided by the original length multiplied by 100.
Growth rate = [tex]\frac{L-l}{l}*[/tex] 100
where L is the new length
l is the original length
L = 111 inches
l = 74 inches
Growth = 111 - 74
= 37 inches
Growth percent = [tex]\frac{37}{74}[/tex] * 100
= 50%
The growth rate of Abigail's pet snake comes out to be 50%
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Suppose the surface area for a can having a particular volume is minimized when the height of the can is equal to 22 cm. If the surface area has been minimized, what would you expect the radius of the can to be? (Round your answer to the nearest tenth if
necessary. You do not need to include the unit.)
If the surface area of a can with a particular volume is minimized when the height of the can is 22 cm, we would expect the radius of the can to be the same as the height, given that a cylinder has the smallest surface area when its height and radius are equal.
The surface area of a can with height h and radius r can be given by the formula:
A = 2πr² + 2πrh
The volume of the can is given by:
V = πr²h
If we differentiate the surface area with respect to r and equate it to zero to find the critical point, we get:
dA/dr = 4πr + 2πh(dr/dr) = 0
Simplifying this expression, we get:
2r + h = 0
Since we know that the height of the can is 22 cm, we can substitute h = 22 in the equation to get:
2r + 22 = 0
Solving for r, we get:
r = -11
Since the radius of the can cannot be negative, we discard this solution. Therefore, the radius of the can should be equal to its height, which is 22 cm.
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What is the domain of the function f(x)=2x^2+5x-12
The domain of the function f(x) = 2x² + 5x - 12 is all real numbers, or (-∞, ∞).
This is because there are no restrictions on the input values of x that would make the function undefined. In other words, we can input any real number into the function and get a valid output.
To determine the domain of a function, we need to consider any restrictions on the independent variable that would make the function undefined.
Common examples of such restrictions include division by zero, taking the square root of a negative number, or taking the logarithm of a non-positive number. However, in this case, there are no such restrictions, and therefore the domain is all real numbers.
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What is the FICA tax on an income of $47,000? Remember that FICA is
taxed at 7.65%
The FICA tax will be $3595.5 on an income of $47,000.
Given that the principal amount = $47,000
Given that the FICA is taxed at the percentage of 7.65%
To findout the FICA tax we have to findout the 7.65% of money from the principal money $47,000.
The formula for finding the Y% of money from Z amount is = [tex]\frac{y}{100}[/tex] * Z
From the above formula, we can find the FICA tax.
FICA tax = [tex]\frac{7.65}{100}[/tex] * 47000 = 0.0765 * 47000 = 3595.5.
From the above solution, we can conclude that the FICA tax on an income of $47,000 is $3595.5
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BRANLYIST IF YOU ASWER ALL 5 RIGHT
1. How many students chose walking as their preferred method of transportation?
A 6
B 3
C 9
D none of these
2. How many total students participated in the survey?
A 10
B 20
C 15
D none of these
3. What percentage of the total students chose skateboarding?
A 10%
B 20%
C 30%
D none of these
4. What percentage of the boys chose walking?
A 30%
B 45%
C 25%
D none of these
5. What percentage of the students who chose biking were girls?
A 30%
B 37. 5%
C 45%
D none of these
1. The number of students choosing walking as their preferred method of transportation is 9. Therefore, the correct option is C.
2. The total students participated in the survey are 20. Therefore, the correct option is B.
3. The percentage of the total students choosing skateboarding is 10%. Therefore, the correct option is A.
4. The percentage of the boys choosing walking is 30%. Therefore, the correct option is A.
5. The percentage of the students who chose biking were girls is 37.5%. Therefore, the correct option is B.
1. The number of students who chose walking as their preferred method of transportation based on the information provided is 9. The total number of students who chose walking is given as 9 (3 boys + 6 girls). Hence the correct answer is option C.
2. The total students who participated in the survey based on the information provided are 20. The total number of students is given as 20 (10 boys + 10 girls). Hence the correct answer is option B.
3. The percentage of the total students who chose skateboarding based on the information provided is 10%. 3 students chose skateboarding out of 20 total students, so the percentage is (3/20) * 100% = 10%. Hence the correct answer is option A.
4. The percentage of the boys who chose walking based on the information provided is 30%. 3 boys chose walking out of 10 total boys, so the percentage is (3/10) * 100% = 30%. Hence the correct answer is option A.
5. The percentage of the students who chose biking were girls based on the information provided is 37.5%. 3 girls chose biking out of 8 total students who chose biking, so the percentage is (3/8) * 100% = 37.5%. Hence the correct answer is option B.
Note: The question is incomplete. The complete question probably is: Given the following data:
Activity Boys Girls Total
Walk 3 6 9
Bike 5 3 8
Skateboard 2 1 3
Total 10 10 20
1. How many students chose walking as their preferred method of transportation? A. 6 B. 3 C. 9 D. none of these. 2. How many total students participated in the survey? A. 10 B. 20 C. 15 D. none of these 3. What percentage of the total students chose skateboarding? A. 10% B. 20% C. 30% D. none of these. 4. What percentage of the boys chose walking? A. 30% B. 45% C. 25% D. none of these. 5. What percentage of the students who chose biking were girls? A. 30% B. 37. 5% C. 45% D. none of these.
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Question 13
"s
the measure of one of the small angles of a right triangle is 30 less than 7 times
small angle. find the measure of both angles.
smallest angle:
other non-right angle:
add work
> next question
The smallest angle measures 15 degrees and the other non-right angle measures 75 degrees.
To find the measure of both angles in a right triangle with the given conditions, we will use the information provided:
Let x be the measure of the smallest angle. The problem states that the measure of one of the small angles is 30 less than 7 times the smallest angle, which can be written as:
Other non-right angle = 7x - 30
Since this is a right triangle, the sum of the two small angles must be 90 degrees (because the other angle is 90 degrees, and the sum of angles in a triangle is 180 degrees). So, we can set up the following equation:
x + (7x - 30) = 90
Now, solve for x:
8x - 30 = 90
8x = 120
x = 15
So, the smallest angle is 15 degrees. Now, we can find the measure of the other non-right angle:
Other non-right angle = 7x - 30 = 7(15) - 30 = 105 - 30 = 75 degrees
In summary, the smallest angle measures 15 degrees and the other non-right angle measures 75 degrees.
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AABC DEF. What sequence of transformations will move AABC onto ADEF?
A. A dilation by a scale factor of 2, centered at the origin, followed by
a reflection over the y-axis
B. The translation (x, y) - (x + 7, y), followed by a dilation by a scale
factor of 2 centered at the origin
C. A dilation by a scale factor of 2, centered at the origin, followed by
the translation
(x,y) → (x+7, y)
D. A dilation by a scale factor of 2, centered at the origin, followed by
the translation (x, y) - (x+7, y)
Therefore, the correct sequence of transformations is:
Dilation by a scale factor of 2, centered at the origin.
Translation of 7 units to the left.
This is equivalent to option D.
To move AABC onto ADEF, we need to perform a sequence of transformations that will map each point of AABC onto the corresponding point of ADEF. Let's first label the vertices of AABC and ADEF as shown:
We can see that A and D have the same coordinates, so we only need to map B, C, and A' to E, F, and D', respectively.
Option A suggests a dilation by a scale factor of 2, centered at the origin, followed by a reflection over the y-axis. This transformation will map B to E, but it will also map C to C' which is not the same as F. Moreover, A' will be mapped to a point that is reflected over the y-axis and does not coincide with D. Therefore, option A is not the correct answer.
Option B suggests a translation of 7 units to the right, followed by a dilation by a scale factor of 2 centered at the origin. This transformation will not map B to E, but it will map A' to D', and C to a point that is 7 units to the right of F. Therefore, option B is not the correct answer either.
Option C suggests a dilation by a scale factor of 2, centered at the origin, followed by a translation of 7 units to the right. This transformation will map A' to D', and B to a point that is 7 units to the right of E. However, it will also map C to a point that is 7 units to the right of F, which is not the same as F. Therefore, option C is not the correct answer.
Option D suggests a dilation by a scale factor of 2, centered at the origin, followed by a translation of 7 units to the left. This transformation will map B to E, and A' to D', but it will also map C to a point that is 7 units to the left of F. However, if we reflect the resulting figure over the y-axis, we obtain the desired result.
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Problem
Yoshi is a basketball player who likes to practice by attempting the same three-point shot until he makes the shot. His past performance indicates that he has a
30
%
30%30, percent chance of making one of these shots. Let
X
XX represent the number of attempts it takes Yoshi to make the shot, and assume the results of each attempt are independent.
Is
X
XX a binomial variable? Why or why not?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Each trial isn't being classified as a success or failure, so
X
XX is not a binomial variable.
(Choice B)
B
There is no fixed number of trials, so
X
XX is not a binomial variable.
(Choice C)
C
The trials are not independent, so
X
XX is not a binomial variable.
(Choice D)
D
This situation satisfies each of the conditions for a binomial variable, so
X
XX has a binomial distribution
Choice D is correct: This situation satisfies each of the conditions for a binomial variable, so X has a binomial distribution.
A random variable X is said to have a binomial distribution if it satisfies the following conditions:
The variable X represents the number of successes in a fixed number of independent trials.
Each trial has only two possible outcomes: success or failure.
The probability of success is constant for each trial.
The trials are independent.
In this case, Yoshi attempts the same three-point shot until he makes the shot, so the number of attempts is not fixed. However, each attempt can be classified as a success (if he makes the shot) or a failure (if he misses the shot), so the variable X represents the number of successes in a sequence of independent trials with only two possible outcomes. Also, the probability of success is constant for each attempt, and the attempts are independent, so all four conditions for a binomial distribution are satisfied. Therefore, X is a binomial variable.
Choice D is correct: This situation satisfies each of the conditions for a binomial variable, so X has a binomial distribution.
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in the absence of predators the natural growth rate of rabbits is 4% per year. a population begins with 100 rabbits. the function f(x) = 100(1.04) ^x gives the population of rabbits in x years. how long will it take the population of rabbits to double? how long will it take the population of rabbits to reach 1000?
a) It will take approximately 16.85 years for the rabbit population to double.
b) It will take approximately 37.28 years for the rabbit population to reach 1000.
The formula for calculating the population of rabbits in x years, starting with 100 rabbits and a natural growth rate of 4% per year, is given by:
f(x) = 100(1.04)ˣ
(a) To find out how long it will take for the rabbit population to double, we need to solve the following equation:
100(1.04)ˣ = 200
Dividing both sides by 100, we get:
(1.04)ˣ = 2
Taking the logarithm of both sides with base 1.04, we get:
x = log₁.₀₄ 2
Using a calculator, we get:
x ≈ 16.85
(b) To find out how long it will take for the rabbit population to reach 1000, we need to solve the following equation:
100(1.04)ˣ = 1000
Dividing both sides by 100, we get:
(1.04)ˣ = 10
Taking the logarithm of both sides with base 1.04, we get:
x = log₁.₀₄ 10
Using a calculator, we get:
x ≈ 37.28
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There are 4 paperback and 10 hardback books on a reading list. Your teacher randomly assigns you 3 books to take home. What is the probability that you are assigned all hardback books?
The probability of being assigned all hardback books is approximately 0.33 or 33%.
This can be done by combination formula C(n,r) = n!/(r!(n-r)!)
The total number of ways to choose three books from a list of 14 books is given by the combination formula,
C(14,3) =14!/(3!(14-3)!) = (141312) / (321) = 364.
To find the probability of selecting all hardback books, we need to determine the number of ways to select 3 books from the 10 hardback books. This is given by the combination formula,
C(10,3) = 10!/(3!(10-3)!) = 1098 / (321) = 120.
Therefore, the probability of selecting all hardback books is:
P(all hardback) = C(10,3) / C(14,3) = 120/364 = 0.3297
So, the probability of being assigned all hardback books is approximately 0.33 or 33%. This means that out of all possible combinations of 3 books, about 33% will consist of only hardback books.
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Find the zeros of each quadratic equation below by graphing.
Pls I need help
The zeros of the quadratic equation are as follows
1. y = -x²+ 6x - 5:
zeros: (1, 0) and (5, 0)
2. y = x² + 2x + 1:
zeros: (-1, 0).
3. y = -x²+ 8x - 17:
zeros: (0, 0) and (0, 0)
4. y = x² - 4:
zeros: (1, 0) and (5, 0)
What is zero of a quadratic equation?Zero in a quadratic equation are x values that make the equation equal to zero. In other words, they are the x-intercepts or roots of a quadratic function.
Using graphical method, a zero is the point of intersection of the curve with the x -axis and this is shown in the graph attached.
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Each of the letters from the word PROBABILITY are written on a card and placed in a bag. What is the probability of choosing
vowel expressed as a decimal? Assume "Y" is a consonant
The probability of choosing a vowel from the word PROBABILITY, expressed as a decimal, is approximately 0.364.
To find the probability of choosing a vowel from the word PROBABILITY, you'll need to follow these steps:
1. Identify the total number of letters in the word: There are 11 letters in the word PROBABILITY.
2. Identify the number of vowels in the word: There are 4 vowels (O, A, I, and I).
3. Calculate the probability by dividing the number of vowels by the total number of letters: Probability = (number of vowels) / (total number of letters) = 4/11.
A decimal indication that the probability of selecting a vowel from the word PROBABILITY is roughly 0.364.
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Doug is going to ride his bicycle
3
,
000
3,0003, comma, 000 miles across the United States, from coast to coast. He wants to choose the route that will give him the greatest chance of success. Here's what he finds in his research:
There have been
2
22 attempts on the northern route from Maine to Washington. Both of those riders made it
2
,
000
2,0002, comma, 000 miles and quit in Montana.
There have been
19
1919 attempts on the central route from Virginia to California;
9
99 of those riders didn't make it out of Virginia and the other
10
1010 made it all the way to the Pacific.
There have been
32
3232 attempts on the southern route from Florida to San Diego. One of those riders made it the whole way. Another realized he was out of shape, and quit before he even started. The other
30
3030 riders quit somewhere in Texas. They were evenly distributed between
1
,
300
1,3001, comma, 300 and
1
,
700
1,7001, comma, 700 miles.
The chances of success in cycling across the United States is higher on the central route because more than half of the people who started on this route finished it (52%), while on the other routes the chances of successful completion is lower (route north (0%) south (0.02%).
What is probability?According to the above, to find the probability of success in crossing the United States from coast to coast, we must divide the number of successful attempts by the total number of attempts as shown below:
North Route
0 ÷ 2 = 0
Center Route
10 ÷ 19 = 0.52
South Route
1 ÷ 39 = 0.025
According to the above, the highest probability of success is found in the central route with 0.52, that is to say that more than half of those who tried this route finished.
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The linear density of a rod of length 9 m is given by p(a) - 3+2017 - measured in kilograms per meter, where is measured in meters from one end of the rod. Find the total mass of the rod. Total mass = kg
The total mass of the rod is 81622.5 kg. To find the total mass of the rod, you need to integrate the linear density function with respect to the length of the rod.
To find the total mass of the rod, we need to integrate the linear density function over the entire length of the rod.
Let's start by finding the linear density function at the end of the rod, which is a = 9:
p(9) = 3 + 2017 = 2020 kg/m
Now we can integrate the linear density function from a = 0 to a = 9 to find the total mass:
m = ∫₀⁹ p(a) da
m = ∫₀⁹ (3 + 2017a) da
m = [3a + 1008.5a²] from 0 to 9
m = (3(9) + 1008.5(9)²) - (3(0) + 1008.5(0)²)
m = 81622.5 kg
Therefore, the total mass of the rod is 81622.5 kg.
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Each expression represents an objectâs distance from the ground in meters as a function of time, t, in seconds.
Object A: â5t2+25t+50
Object B: â5t2+50t+25
a. Which object was launched with the greatest vertical speed?
b. Which object was launched from the greatest height?
please help
Object B was launched with the greatest vertical speed and Object A was launched from the greatest height of 50 meters.
a. The vertical speed of an object launched can be calculated using the derivative of the distance function with respect to time. Taking the derivative of the distance function of Object A with respect to time, we get:
v(t) = -10t + 25
Taking the derivative of the distance function of Object B with respect to time, we get:
v(t) = -10t + 50
Comparing the two velocity functions, we can see that Object B was launched with the greatest vertical speed because its velocity function has a higher initial velocity (50 m/s) than that of Object A (25 m/s).
b. The initial height of an object launched can be determined by finding the value of its distance function when t=0.
For Object A, the distance function when t=0 is:
-5(0)^2 + 25(0) + 50 = 50 meters
For Object B, the distance function when t=0 is:
-5(0)^2 + 50(0) + 25 = 25 meters
Therefore, Object A was launched from the greatest height of 50 meters.
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a consumer activist decides to test the authenticity of the claim. she follows the progress of 20 women who recently joined the weight-reduction program. she calculates the mean weight loss of these participants as 14.8 pounds with a standard deviation of 2.6 pounds. the test statistic for this hypothesis would be
The test statistic for the hypothesis about a consumer activist decides to test the authenticity of the claim is t = 1.38.
In a hypothesis test, a test statistic—a random variable—is computed from sample data. To decide whether to reject the null hypothesis, you can utilise test statistics. Your results are compared to what would be anticipated under the null hypothesis by the test statistic. The p-value is computed using the test statistic.
A test statistic gauges how closely a sample of data agrees with the null hypothesis. Its observed value fluctuates arbitrarily from one random sample to another. When choosing whether to reject the null hypothesis, a test statistic includes information about the data that is important to consider. The null distribution is the sample distribution of the test statistic for the null hypothesis.
Sample size, n = 20
Sample mean, x = 14.8 pounds
Sample standard deviation, s = 2.6
The null hypothesis is,
[tex]H_o[/tex]: μ ≤ 14
The alternative hypothesis is,
[tex]H_a[/tex] : μ > 14
t-test statistic is defined as:
[tex]t = \frac{x - \mu}{\frac{s}{\sqrt{n} } }[/tex]
[tex]= \frac{14.8 - 14}{\frac{2.6}{\sqrt{20} } }[/tex]
= [tex]\frac{0.8}{0.581}[/tex]
= 1.377
t = 1.38.
Therefore, the test statistic for the hypothesis is 1.38.
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Complete question"
An advertisement for a popular weight-loss clinic suggests that participants in its new diet program lose, on average, more than 14 pounds. A consumer activist decides to test the authenticity of the claim. She follows the progress of 20 women who recently joined the weight-reduction program. She calculates the mean weight loss of these participants as 14.8 pounds with a standard deviation of 2.6 pounds. The test statistic for this hypothesis would be Multiple Choice -1.38 1.38 1.70 -1.70 O O
The distance around a neighborhood is 6 miles. When Sam measured it with an
odometer, the distance was 5. 52 miles. What is the percent of error of the
measurement?
The percent of error in the measurement is 8%. This means that the measured value of 5.52 miles is 8% less than the actual distance of 6 miles.
To find the percent of error, we need to calculate the difference between the measured value and the actual value, divide that by the actual value, and then multiply by 100 to convert to a percentage.
Actual distance around the neighborhood = 6 miles
Measured distance around the neighborhood = 5.52 miles
Difference = Actual distance - Measured distance
Difference = 6 miles - 5.52 miles
Difference = 0.48 miles
Percent of error = (|Difference| / Actual distance) x 100%
Percent of error = (|0.48| / 6) x 100%
Percent of error = 0.08 x 100%
Percent of error = 8%
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Riley and her family move from the Midwest all the way to San Francisco. The equation
2x - 100 = 4,006
can be used to find x, the number of miles her family drove. How many miles did her
family drive?
Riley and her family move from the Midwest all the way to San Francisco. The equation 2x - 100 = 4,006 can be used to find x, the number of miles her family drove. Riley's family drove 2,053 miles from the Midwest to San Francisco.
Find the number of miles Riley's family drove from the Midwest to San Francisco, we need to solve the equation 2x - 100 = 4,006 for x.
First, we'll add 100 to both sides of the equation to isolate the variable term:
2x - 100 + 100 = 4,006 + 100
Simplifying:
2x = 4,106
isolate x, we'll divide both sides of the equation by 2:
2x/2 = 4,106/2
Simplifying:
x = 2,053
Therefore, Riley's family drove 2,053 miles from the Midwest to San Francisco.
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Eli is comparing the prices of things in the following two flyers Eli only wants to get the best deals he knows he will have to visit both stores help Eli find the best deal for each item
Identify the best deal for each item
For milk, Store A has the better deal: $2.50 for 1 gallon is cheaper than $3.19 for 2 liters at Store B.For bread, Store B has the better deal: $1.49 for a loaf is cheaper than $1.99 for a loaf at Store A.For eggs, Store B has the better deal: $0.99 for a dozen is cheaper than $1.79 for a dozen at Store A.Which store has the better deal for the following items?Eli needs to visit both stores to get the best deals for each item. Store A has the better deal for milk, while Store B has the better deals for bread and eggs. By going to both stores, Eli can save money on all three items.Learn more about deals
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Jocelyn's car tires are spinning at a rate of 120 revolutions per
minute. If her car's tires are 28 inches in diameter, how many
miles does she travel in 5 minutes? Round to the nearest
hundredth. 63360 inches = 1 mile.
The required answer is Jocelyn travels approximately 0.83 miles in 5 minutes.
Jocelyn's car tires are spinning at a rate of 120 revolutions per minute. If her car's tires are 28 inches in diameter, we can calculate the distance traveled in one revolution by finding the circumference of the tire:
Circumference = π x diameter
Circumference = 3.14 x 28 inches
Circumference ≈ 87.92 inches
So in one revolution, the car travels approximately 87.92 inches. To find out how many miles Jocelyn travels in 5 minutes, we need to multiply the number of revolutions in 5 minutes (which is 120 revolutions per minute x 5 minutes = 600 revolutions) by the distance traveled in one revolution (87.92 inches).
Distance traveled in 5 minutes = 600 revolutions x 87.92 inches/revolution
Distance traveled in 5 minutes = 52,752 inches
To convert inches to miles, we can use the conversion factor given: 1 mile = 63,360 inches.
Distance traveled in 5 minutes = 52,752 inches ÷ 63,360 inches/mile
Distance traveled in 5 minutes ≈ 0.83 miles
Therefore, Jocelyn travels approximately 0.83 miles in 5 minutes with her car tires spinning at a rate of 120 revolutions per minute. Rounded to the nearest hundredth, the answer is 0.83 miles.
To find out how many miles Jocelyn travels in 5 minutes, follow these steps:
1. Calculate the circumference of one tire: Circumference = Diameter × π.
Circumference = 28 inches × π ≈ 87.96 inches.
2. Determine the distance traveled in one revolution: One revolution covers the circumference of the tire, which is 87.96 inches.
3. Calculate the distance traveled in one minute: 120 revolutions per minute × 87.96 inches per revolution ≈ 10,555.2 inches per minute.
4. Determine the distance traveled in 5 minutes: 10,555.2 inches per minute × 5 minutes = 52,776 inches.
5. Convert the distance from inches to miles: 52,776 inches ÷ 63,360 inches per mile ≈ 0.83 miles.
So, Jocelyn travels approximately 0.83 miles in 5 minutes.
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To estimate the cost of a new product, one expression
used by the production department is 41rr2 + ? r 3. Write
an equivalent expression by factoring 4 m2 from both
terms
The factorization of the given algebraic expression will give us:
4πr²(1 + ¹/₃r)
How to factorize algebra expressions?In order for us to factorize an algebraic expression, the highest common factors of the terms of the given algebraic expression would first be found and then we will group the terms accordingly. In simple terms, the reverse process of expansion of an algebraic expression is referred to as its factorization.
We are given the algebraic expression as:
4πr² + ⁴/₃πr³
Now, we want to factor 4πr² from both terms and this will give us:
4πr²(1 + ¹/₃r)
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