The vertex form of the equation of the parabola is:
r = (1/24)(y - 1)^2 + 3
Since the directrix is a horizontal line, the axis of the parabola is vertical. Therefore, the vertex form of the equation of the parabola is:
r = a(y - k)^2 + h
where (h, k) is the vertex of the parabola and "a" is a constant that determines the shape and orientation of the parabola.
Since the focus is (3,-5), the vertex of the parabola is halfway between the focus and the directrix. The directrix is 6 units above the vertex, so the vertex is (3,1).
We can use this information to write the vertex form of the equation:
r = a(y - 1)^2 + 3
To find the value of "a", we need to use the distance formula between the vertex and the focus:
distance = |y-coordinate of focus - y-coordinate of vertex| = 6
| -5 - 1 | = |-6| = 6
Using the definition of the parabola, the distance from the vertex to the focus is also equal to 1/(4a). Therefore:
1/(4a) = 6
a = 1/(4*6) = 1/24
Substituting this value of "a" into the vertex form equation, we get:
r = (1/24)(y - 1)^2 + 3
Therefore, the vertex form of the equation of the parabola is:
r = (1/24)(y - 1)^2 + 3
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A cat darts around a room chasing a ball. The cat first travels along the vector −1, 2 and then chases the ball along the vector 2, 6 − . The cat darts after the ball 1.5 times along the vector 4, 3 . This is where the cat catches the ball and chews on it. What vector describes the cat’s final position? Show all your work.
To find the cat's final position, we need to add up all the vectors representing the cat's movements.
The cat first travels along the vector −1, 2.
Next, the cat chases the ball along the vector 2, 6 − , which we can write as (2, 6) − (0, 1) = (2, 5).
Then, the cat darts after the ball 1.5 times along the vector 4, 3, which we can write as 1.5(4, 3) = (6, 4.5).
Finally, the cat's position after catching the ball is the sum of all these vectors:
(-1, 2) + (2, 5) + (6, 4.5) = (7, 11.5)
Therefore, the vector describing the cat's final position is (7, 11.5).
A hand-made carton has the following dimensions:
length of the base-7 inches
width of the base-6 inches
height of the carton-6 inches
what change should be made to the dimensions to increase the
volume of the carton by 42 cubic inches?
a. increase the height of the carton to 7 inches
b. increase the height of the carton to 8 inches
c. increase the width of the base to 8 inches
d. increase the width of the base to 9 inches
The correct answer is option (a), increase the height of the carton to 7 inches.
How can the volume of a handmade carton be increased by 42 cubic inches?
To increase the volume of the carton by 42 cubic inches, we need to increase either the length, width, or height of the carton or a combination of these dimensions.
Let's first calculate the current volume of the carton:
Volume = length x width x height
Volume = 7 x 6 x 6
Volume = 252 cubic inches
Now, we need to find a new dimension that will increase the volume by 42 cubic inches.
a) If we increase the height to 7 inches, the new volume will be:
New Volume = 7 x 6 x 7
New Volume = 294 cubic inches
The volume has increased by 42 cubic inches, so option (a) is the correct answer.
b) If we increase the height to 8 inches, the new volume will be:
New Volume = 7 x 6 x 8
New Volume = 336 cubic inches
The volume has increased by 84 cubic inches, which is more than required.
c) If we increase the width of the base to 8 inches, the new volume will be:
New Volume = 7 x 8 x 6
New Volume = 336 cubic inches
The volume has increased by 84 cubic inches, which is more than required.
d) If we increase the width of the base to 9 inches, the new volume will be:
New Volume = 7 x 9 x 6
New Volume = 378 cubic inches
The volume has increased by 126 cubic inches, which is more than required.
Therefore, the correct answer is option (a), increase the height of the carton to 7 inches.
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Town Hall is located 4. 3 miles directly east of the middle school. The fire station is located 1. 7 miles directly north of Town Hall.
Part A
What is the length of a straight line between the school and the fire station? Round to the nearest tenth. Enter your answer in the box.
Part B
The hospital is 3. 1 miles west of the fire station. What is the length of a straight line between the school and the hospital? Round to the nearest
tenth. Enter your answer in the box.
Using Pythagorean theorem the distance between the school and the fire station is approximately 4.7 miles, while the distance between the school and the hospital is approximately 7.8 miles.
To solve this problem, we can use the Pythagorean theorem to find the distances and then add them up to get the total distance between the school and the fire station, and then between the school and the hospital.
Part A:
Let's call the middle school point A, Town Hall point B, and the fire station point C. We can draw a right triangle with AB as the base, BC as the height, and AC as the hypotenuse. Using the Pythagorean theorem, we have:
AC^2 = AB^2 + BC^2
AC^2 = 4.3^2 + 1.7^2
AC^2 = 18.98 + 2.89
AC^2 = 21.87
AC ≈ 4.7 miles (rounded to the nearest tenth)
Therefore, the length of the straight line between the school and the fire station is approximately 4.7 miles.
Part B:
Let's call the hospital point D. We can draw another right triangle with CD as the base, BC as the height, and BD as the hypotenuse. Using the Pythagorean theorem, we have:
BD^2 = BC^2 + CD^2
BD^2 = 1.7^2 + 3.1^2
BD^2 = 2.89 + 9.61
BD^2 = 12.5
BD ≈ 3.5 miles (rounded to the nearest tenth)
Now, we can add the distance between A and B (4.3 miles) to the distance between B and D (3.5 miles) to get the total distance between A and D:
AD ≈ 7.8 miles (rounded to the nearest tenth)
Therefore, the length of the straight line between the school and the hospital is approximately 7.8 miles.
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The altitude (or height) of a triangle is increasing at a rate of 2.5cm/min while the area of the triangle is increasing at a rate of 3cm2/min. At what rate (in cm/min) is the base of the triangle changing when the altitude is 12cm and the area is 84cm2 Round your answer to three decimal places.
The base is decreasing at 1.917 cm/min when altitude is 12cm and area=84cm².
Let A be the area of the triangle, h be the height of the triangle, and b be the base of the triangle.
Then the formula for the area of a triangle is:
A = (1/2)bh
We are given that dh/dt = 2.5 cm/min (the height is increasing at a rate of 2.5cm/min), and dA/dt = 3 cm²/min (the area is increasing at a rate of 3cm²/min).
We want to find db/dt, the rate of change of the base of the triangle when h = 12 cm and A = 84 cm².
To solve this problem, we need to use the chain rule of differentiation.
We start by differentiating both sides of the formula for the area of a triangle with respect to time t:
dA/dt = (1/2) d/dt (bh)
Next, we can use the product rule of differentiation to find d/dt (bh):
d/dt (bh) = b dh/dt + h db/dt
Substituting this into the previous equation gives:
dA/dt = (1/2) [ b dh/dt + h db/dt ]
Now we can substitute the given values of dh/dt and dA/dt, as well as h = 12 cm and A = 84 cm².
To find db/dt:
3 cm²/min = (1/2) [ b (2.5 cm/min) + 12 cm db/dt ]
Simplifying this expression gives:
6 cm²/min = 2.5 b cm²/min + 12 cm db/dt
Substituting A = 84 cm² and h = 12 cm into the formula for the area of a triangle gives:
84 cm² = (1/2) b (12 cm)
Simplifying this expression gives:
b = 14 cm
Now we can substitute b = 14 cm into the previous equation to find db/dt:
6 cm²/min = 2.5 (14 cm) cm²/min + 12 cm db/dt
Simplifying this expression gives:
db/dt = (6 cm²/min - 35 cm²/min) / (12 cm)
db/dt = -1.917 cm/min (rounded to three decimal places)
Therefore, the base of the triangle is decreasing at a rate of 1.917 cm/min when the height is 12 cm and the area is 84 cm².
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Verónica jogged 10 3/16 miles in a one week, the next week she jogged 8 7/16 miles. how many more miles did she jog the first week? pls answer
Verónica jogged 7/4 or 1 and 3/4 more miles in the first week than in the second week.
Verónica jogged 10 3/16 miles in one week, next week she jogged 8 7/16 miles. how many miles did she jog the first week?Verónica jogged 10 3/16 miles in the first week and 8 7/16 miles in the second week. To find how many more miles she jogged in the first week, we need to subtract the distance she jogged in the second week from the distance she jogged in the first week:
10 3/16 miles - 8 7/16 miles
We need to first convert both mixed numbers to improper fractions:
10 3/16 = (10 x 16 + 3) / 16 = 163 / 16
8 7/16 = (8 x 16 + 7) / 16 = 135 / 16
Now we can subtract the two fractions:
163 / 16 - 135 / 16 = (163 - 135) / 16 = 28 / 16
We can simplify the fraction by dividing both the numerator and the denominator by their greatest common factor (GCF), which is 4:
28 / 16 = (4 x 7) / (4 x 4) = 7 / 4
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Please help!!! 10 points
The solution is, Options 1, 3, and, 5 are true.
The statements given are,
1.) The product of reciprocals is 1.
Let the fraction be a/b , and reciprocal be b/a ,
The product of the two will be 1.
Hence, the statement is true.
2.) To divide fractions, multiply the divisor by the reciprocal of the dividend.
Let the fraction be a/b , now,
a/b*1/a = a^2/b,
Hence, the statement is false.
3.) The reciprocal of a whole number is 1 over the number.
Let the number be 3, now,
The reciprocal of number 3 is 1/3 .
Hence, the statement is true.
4.) Reciprocals are used to multiply fractions.
The statement is false, Reciprocals are not used to multiply fractions.
5.) To find the reciprocal of a fraction, switch the numerator and denominator.
Let the fraction be a/b , then the reciprocal will be b/a .
Hence, the statement is true.
Therefore, Options 1, 3, and, 5 are true.
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complete question:
Select all that apply. Determine which of the following statements are true of reciprocals. Select all that apply. The product of reciprocals is 1 To divide fractions, multiply the divisor by the reciprocal of the dividend The reciprocal of a whole number is 1 over the number Reciprocals are used to multiply fractions To find the reciprocal of a fraction, switch the numerator and denominator
For a science experiment Corrine is adding hydrochloric acid to distilled
water. The relationship between the amount of hydrochloric acid, x, and the
amount of distilled water, y, is graphed below. Which inequality best
represents this graph?
The best inequality that represents the relationship between the amount of hydrochloric acid (x) and the amount of distilled water (y) in the given graph is 3y - 2x > 0, option D is correct.
The graph shows a straight line with a negative slope passing through the origin. As the amount of hydrochloric acid, x, increases, the amount of distilled water, y, decreases
To see why, let's use a point on the line, such as (2, 3), and plug it into the inequality. We get:
3(3) - 2(2) > 0
9 - 4 > 0
This is true, so the point (2, 3) is a solution to the inequality. Any point on the line will also satisfy this inequality since it represents all possible combinations of x and y that Corrine can use in her experiment.
Alternatively, we can rewrite the inequality in slope-intercept form:
y < (2/3)x
This means that the y-values on the line are less than the corresponding values of (2/3)x. So as x increases, y must decrease to stay below the line. This confirms that 3y - 2x > 0 is the correct inequality.
Hence, option D is correct.
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The correct question is:
For a science experiment, Corrine is adding hydrochloric acid to distilled water. The relationship between the amount of hydrochloric acid, x, and the amount of distilled water, y, is graphed below. Which inequality best represents this graph?
A. 2y - 3x < 0
B. 3y - 2x < 0
C. 2y - 3x > 0
D. 3y - 2x > 0
Patricia bought 4 apples and 9 bananas for $12. 70 Jose bought 8 apples and I bananas for $17. 70 at the same grocery store What is the cost of one apple?
The cost of one apple is $2.15.
To find the cost of one apple, we can set up a system of equations with the given information. Let's use A for the cost of one apple and B for the cost of one banana:
1) 4A + 9B = $12.70
2) 8A + B = $17.70
Now, we can solve this system of equations. We can multiply equation 1 by 2 to match the number of apples in equation 2:
1) 8A + 18B = $25.40
Now subtract equation 2 from the modified equation 1:
(8A + 18B) - (8A + B) = $25.40 - $17.70
17B = $7.70
Now, divide by 17 to find the cost of one banana:
B = $7.70 / 17 = $0.45
Now that we know the cost of one banana, we can substitute B in equation 2 to find the cost of one apple:
8A + ($0.45) = $17.70
8A = $17.25
A = $17.25 / 8 = $2.15
So, the cost of one apple is $2.15.
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What is the product? assume x greater-than-or-equal-to 0 (startroot 3 x endroot startroot 5 endroot) (startroot 15 x endroot 2 startroot 30 endroot) 3 x startroot 5 endroot 3 startroot 165 x endroot 10 startroot 6 endroot 3 x startroot 5 endroot 6 startroot 10 x endroot 5 startroot 3 x endroot 10 startroot 6 endroot 3 x startroot 5 endroot 10 startroot 6 endroot startroot 3 x endroot 5 startroot 3 x endroot 10 startroot 6 endroot
The product of the given expression is 2,916,000,000x³√(9,900x²).
The given expression contains several terms with roots and variables. To simplify and find the product, we'll first multiply the terms with similar roots and variables. The expression is:
√(3x)√5 √(15x)√2 √(30) 3x√5 3√(165x) √10 √6 3x√5 √6 √(10x) √5 √(3x) √10 √6 3x√5 √10 √6 √(3x) √5 √(3x) √10 √6
We can group terms with the same roots and variables together:
(√(3x))⁴ (3x)³ (√5)⁴ (√10)³ (√6)³ √15x √2 √30 √165x
Now, we can simplify each group:
81x³ * 625 * 1000 * 216 * √(2 * 15x * 30 * 165x)
Combine the constants and variables under the root:
81x³ * 625 * 1000 * 216 * √(9,900x²)
Calculate the product of the constants:
13,500,000 * 216 = 2,916,000,000
So, the final simplified expression is:
2,916,000,000x³√(9,900x²)
In summary, the product of the given expression is 2,916,000,000x³√(9,900x²).
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An author works on a new book and after writing a few chapters, begins a new plan to write 600
words per day. On the fifth day of working on this plan. 4,500 words have been written.
If the equation y=600. 0 + b represents the total number of words the author has written, y, based
on the number of days, x, since the new plan was started, what is the value of b?
The value of b is 1,500, which means that the author had already written 1,500 words before starting the new plan.
In the equation y = 600x + b, x represents the number of days since the author started the new plan to write 600 words per day, and y represents the total number of words written.
After the fifth day, the author has written 4,500 words. Thus, we can substitute x = 5 and y = 4,500 into the equation and solve for b:
4,500 = 600(5) + b
4,500 = 3,000 + b
b = 4,500 - 3,000
b = 1,500
Therefore, the value of b is 1,500, which means that the author had already written 1,500 words before starting the new plan.
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Ms. Frank is going to wallpaper a living room with dimensions 24 feet long, 18 feet wide, and 8 feet high. How much wallpaper will Ms. Frank need if she is only putting it on the four walls?
Answer:
Step-by-step explanation:
you take 24 multiplied by 18 then by 8 and that'll equal
24 x 18 x 8 = 3456
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find the maximum height reached by the rocket, to the nearest tenth of a foot. Y
=
−
16
x
2
+
180
x
+
63
y=−16x 2
+180x+63
The maximum height reached by the rocket is approximately 504.6 feet.
To find the maximum height reached by the rocket, we need to determine the vertex of the parabola represented by the given quadratic equation: y = -16x^2 + 180x + 63.
The x-coordinate of the vertex can be found using the formula x = -b / 2a, where a = -16 and b = 180.
x = -180 / (2 * -16) = 180 / 32 = 5.625
Now, we'll plug the x-coordinate back into the equation to find the y-coordinate (maximum height).
y = -16(5.625)^2 + 180(5.625) + 63
y ≈ 504.6
The maximum height reached by the rocket is approximately 504.6 feet.
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lmno is a parallelogram. if nm = x + 27 and ol = 3x + 9 find the value of x and then find nm and ol.
The length of NM and OL in the parallelogram LMNO are both 36 units.
How we find the value of x?Since LMNO is a parallelogram, we know that opposite sides are equal in length. Therefore, we can set NM and OL equal to each other:
NM = OL
We also know that NM = x + 27 and OL = 3x + 9, so we can substitute these expressions into the equation:
x + 27 = 3x + 9
Solving for x:
2x = 18
x = 9
Now that we know x, we can substitute it back into the expressions for NM and OL:
NM = x + 27 = 9 + 27 = 36
OL = 3x + 9 = 3(9) + 9 = 36
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Can you help me with part C? Please
Answer: -40
Step-by-step explanation:
Rate of change is calculated as the slope. The formula for Slope is:
S = [tex]\frac{x_{1}-x_{2} }{ y_{1}-y_{2}}[/tex]
The two points we have are when x = 3 and 6.
the points are (3, 120) and (6, 0), as we can see.
plugging into the slope formula:
S = [tex]\frac{120-0 }{ 3-6}[/tex]
S = 120/-3
S = -40
Which hopefully makes sense, because the slope is negative, (the graph is falling).
Rote tells the little monsters to do an overhead press every $12$ seconds and a squat every $30$ seconds. (For example, they should do their first squat $30$ seconds into the drill.)
How many times during the $200$ second drill should the little monsters do an overhead press and a squat at the same instant?
The number of times that the little monsters will do an overhead press and a squat at the same instant during the drill is: 3 times
How to solve Prime Factorization Problems?We are told that, Rote tells the little monsters to carry out an overhead press every 12 seconds and then also a squat every 30 seconds.
Thus, prime factorization of 12: 2² x 3.
Thus, prime factorization of 30: 2 x 3 x 5.
For us to get the least common multiple, we will have to find the highest power of each of the prime factors that show up in either factorization. Therefore, we can say that the smallest common multiple of 12 and 30 are: 2² x 3 x 5 = 60
This tells us that the little monsters will carry out an overhead press and then a squat at the same instant for every 60 seconds.
For us to find how many times this will occur during the 200-second drill, we will then divide 200 by 60:
200 ÷ 60 = 3 remainder 20
This tells us that there will exist 3 complete cycles of both of the exercises during the 200-second drill, with an additional 20 seconds left over.
Therefore, we can say that the little monsters will do an overhead press and a squat at the same instant 3 times during the drill.
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express as a single simplified fraction. 3m^2-3n^2/m^2+mp divided by 6m-6n/p+m
The single simplified fraction is (m + n)(p + m) / 2m.
To simplify the expression
[tex](3m^2 - 3n^2) / (m^2 + mp)÷ (6m - 6n) / (p + m)[/tex]
we need to invert the second fraction and multiply by the first.
[tex](3m^2 - 3n^2) / (m^2 + mp) \times (p + m) / (6m - 6n)[/tex]
We can then factor out a 3 from the numerator and the denominator, and cancel out the (m - n) terms. 3(m + n)(m - n) / 3m(m - n) x (p + m) / 6(m - n)
Simplifying further, we can cancel out the 3's and the (m - n) terms. (m + n) / m x (p + m) / 2
The simplified expression is (m + n)(p + m) / 2m.
To simplify the given expression, we invert the second fraction and multiply it by the first. Then we factor out common terms and cancel out like terms. We simplify the expression to obtain the single fraction (m + n)(p + m) / 2m.
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Answer the following:
Explain how you know that y directly relates to x in the given table. Determine the constant of variation, k.
Write an equation for the direct variation
The equation for the direct variation is y = 2x. This the equation that directly relates y to x. The value of k is 2.
To know that y directly relates to x in a table, we need to check if y increases or decreases proportionally with x. In the given table, we can see that as x increases, y also increases. This indicates a direct relationship between x and y.
The constant of variation, k, can be determined by dividing any y value by its corresponding x value. Let's choose the first row of the table: y=4, x=2. Therefore, k = y/x = 4/2 = 2.
Now, we can write an equation for the direct variation: y = kx. Plugging in the value of k, we get y = 2x. This equation shows that y is directly proportional to x, with a constant of variation, k, equal to 2.
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Find the value of x
Hellpppp
Answer:
r = 14.60
Step-by-step explanation:
r²= 9²+(23/2)²
= 9²+11.5²
= 81+132.25
r² = 213.25
r = √213.25
= 14.60 to 2d.p
ASAP plis i need an answer and explanation
Answer: Z=21, Y=9, X=1
Step-by-step explanation:
Z---------
Since 3z and 63 are equal angles, then 3z must equal 63 as well. So 3 times what is 63? 3 times 21. Z=21.
X------1
2 times 1 is 2.
3 times 1 is 3. 3-1 is 2.
x=1
Y----
Same concept as Z. Since the length 13 and Y+4 are equal sides (definition of the kite figure I forget the proper name) then 13-4 is your answer. 9.
Trucks are delivering gravel to a construction site.
Each truck holds 7.5 cubic yards of gravel.
The weight of one cubic yard of gravel is 1.48 tons
The gravel will be placed in containers that each holds 3.7 tons of gravel.
How many containers of this size are needed to hold all the gravel from one truck.
Please some one answer this with work shown, i need to show work!! Thank you
To determine how many containers of size 3.7 tons are needed to hold all the gravel from one truck, we need to first calculate how many tons of gravel are in one truck.
How many containers of this size are needed to hold all the gravel from one truck?Since each truck holds 7.5 cubic yards of gravel, and the weight of one cubic yard of gravel is 1.48 tons, we can calculate the total weight of gravel in one truck as follows:
7.5 cubic yards x 1.48 tons per cubic yard = 11.1 tons
Therefore, each truck carries 11.1 tons of gravel.
To determine how many containers of size 3.7 tons are needed to hold all the gravel from one truck, we can divide the total weight of gravel in one truck by the capacity of each container:
11.1 tons ÷ 3.7 tons per container = 3 containers
Therefore, three containers of size 3.7 tons are needed to hold all the gravel from one truck.
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Find < F:
(Round your answer to the nearest hundredth)
The length of the hypotenuse is approximately 7.21 ft.
To solve this problem, we can use the Pythagorean theorem, which states that in a right triangle, the sum of the squares of the two shorter sides (legs) is equal to the square of the longest side (hypotenuse). In mathematical terms, it looks like this:
a² + b² = c²
Where "a" and "b" are the lengths of the legs, and "c" is the length of the hypotenuse.
In your case, we can substitute the given values into the equation:
6² + 4² = c²
Simplifying:
36 + 16 = c²
52 = c²
To solve for "c," we need to take the square root of both sides of the equation:
√(52) = c
We can simplify the square root of 52 to be 2 times the square root of 13. Therefore:
c ≈ 7.21 ft
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Complete Question:
Find the value of hypotenuse of the given triangle by using the Pythagoras theorem.
Does anyone know the answer
Answer:
B) <FBG
Step-by-step explanation:
An adjacent angle is an angle that is right next to the given angle.
In this case, the given angle is <EBF.
We can see that the only 2 options here for an adjacent set of angles is either <FBG or <EBD.
Looking at the options, we can only see that <FBG is an option, making B the correct option.
Hope this helps :)
Si al triple de la edad que tengo, se quita mi edad aumentada en 8 años, tendría 36 años. ¿Qué edad tengo?
damePor lo tanto, la edad que tienes es de aproximante 14.67 años.
Si al triple de la edad que tengo, se quita mi edad aumentada en 8 años, tendría 36 años. ¿
Podemos plantear este problema como una ecuación algebraica. Si llamamos "x" a la edad que tienes, la ecuación sería:
3x - 8 = 36
Ahora, despejamos la variable "x" para encontrar su valor:
3x = 36 + 8
3x = 44
x = 44/3
.Este resultado nos indica que nuestra edad actual es de aproximadamente 14.67 años. Es importante tener en cuenta que la solución no es un número entero, lo cual puede parecer inusual para una edad, pero es una respuesta matemáticamente correcta según la ecuación planteada en el problema.
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What is the surface area of the cylinder? Approximate using π = 3.14 and round to the nearest square meter.
a cylinder has radius labeled 2.2 meters and height labeled 6.5 meters
99 square meters
105 square meters
117 square meters
120 square meters
The surface area of the cylinder, rounded to the nearest square meter, is: D. 120 square meters
What is the Surface Area of a Cylinder?The surface area of a cylinder can be calculated by using the formula expressed as:
SA = 2πr(h + r), where r is the radius and h is the height.
Given the following:
π = 3.14
radius (r) = 2.2 m
height of the cylinder (h) = 6.5 m
Plug in the values:
SA = 2 * 3.14 * 2.2 * (6.5 + 2.2)
SA ≈ 120 square meters (rounded to the nearest square meter)
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a carpnter had a piece of wood that is 15 feet long. he cut the wood into pieces that are 1/4 of a foot long . how many pieces did he cut?
Therefore , the solution of the given problem of unitary method comes out to be the carpenter divided the wood into 60 pieces.
Definition of a unitary method.The well-known minimalist approach, current variables, and any crucial elements from the initial Diocesan tailored query can all be used to accomplish the work. In response, you can be granted another chance to utilise the item. If not, important impacts on our understanding of algorithms will vanish.
Here,
Divide the overall length of the wood by the length of each piece to get how many pieces the carpenter cut.
Each piece measures 0.25 feet, or 1/4 of a foot.
By dividing the overall length of the wood by the length of each component, we can determine the number of pieces:
=> Quantity = Length overall / Length of each element
=> Piece count is 15 feet divided by 0.25 feet. or 15/0.25
=> There are 60 parts total.
So, the carpenter divided the wood into 60 pieces.
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The angle of elevation between a fishing vessel and the top of a 50-meter-tall lighthouse is 12 degrees. What is the approximate distance between the fishing vessel and the base of the lighthouse?
A.
10. 6 meters
B.
48. 9 meters
C.
235. 2 meters
D.
240. 5 meters
We solve this problem using the angle of elevation, we can apply the tangent function from trigonometry. The approximate distance between the fishing vessel and the base of the lighthouse is 235.2 meters, which corresponds to option C. 235. 2 meters
Find the approximate distance between the fishing vessel and the base of the 50-meter-tall lighthouse when the angle of elevation is 12 degrees.
Set up the equation using tangent function.
tan(angle of elevation) = (height of lighthouse) / (distance between vessel and lighthouse base)
Plug in the values.
tan(12°) = 50 / distance
Solve for the distance.
distance = 50 / tan(12°)
Calculate the distance using a calculator.
distance ≈ 235.2 meters
So, the approximate distance between the fishing vessel and the base of the lighthouse is 235.2 meters, which corresponds to option C. 235. 2 meters
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The area of a circle increases at a rate of 2 cm2/s. a. How fast is the radius changing when the radius is 4 cm? b. How fast is the radius changing when the circumference is 3 cm?
a) When the radius is 4 cm, it is changing at a rate of 1/(4π) cm/s.
b) When the circumference is 3 cm, the radius is changing at a rate of 2/3 cm/s.
How to find the change of radiusa. Given that the area of a circle increases at a rate of 2 cm²/s, let's denote this rate as dA/dt.
The formula for the area of a circle is A = πr²,
where A is the area and r is the radius.
We want to find the rate at which the radius is changing, or dr/dt, when the radius is 4 cm.
Using implicit differentiation with respect to time t, we get:
dA/dt = d(πr²)/dt 2 = 2πr(dr/dt)
Now, we'll plug in the radius value of 4 cm:
2 = 2π(4)(dr/dt)
Solving for dr/dt, we get:
dr/dt = 1/(4π) cm/s
b. We are given the circumference, which is 3 cm.
The formula for the circumference of a circle is C = 2πr, where C is the circumference and r is the radius.
First, we need to find the radius when the circumference is 3 cm: 3 = 2πr r = 3/(2π)
Now, we'll plug this value for the radius back into the formula from part a:
2 = 2π(3/(2π))(dr/dt)
Solving for dr/dt, we get:
dr/dt = 2/3 cm/s
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Find the measure of ZB 75° b
Answer: ∠b = 105°
Step-by-step explanation:
We know that a straight line is equal to 180 degrees. We will create an equation and solve for ∠b.
180° = ∠b + 75°
∠b = 180° - 75°
∠b = 105°
Which cardboard box can hold the greatest number of 1 in x 2 in x 4 in sponges
The cardboard box with the largest volume can hold the greatest number of 1 in x 2 in x 4 in sponges.
To find the box with the largest volume, first determine the volume of each sponge: V_sponge = 1 in x 2 in x 4 in = 8 cubic inches. Next, find the volume of each box by multiplying its length, width, and height (V_box = L x W x H).
To determine how many sponges each box can hold, divide the volume of the box by the volume of the sponge (V_box / V_sponge). The box with the highest resulting quotient can hold the most 1 in x 2 in x 4 in sponges.
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To the nearest whole cubic centimeter, what is the volume of the prism?
The volume of the prism in 120 cubic centimeter.
What is volume?Volume is a measure of the amount of space occupied by a three-dimensional object. It is a scalar quantity that characterizes the "size" or "capacity" of an object in three dimensions.
What is prism?A prism is a three-dimensional geometric shape that has two parallel and congruent bases connected by lateral faces that are typically rectangular or parallelogram-shaped. Prisms are classified based on the shape of their base, such as rectangular prisms, triangular prisms, pentagonal prisms, hexagonal prisms, and so on. The lateral faces of a prism are perpendicular to the bases, and the bases are usually parallel to each other.
According to the given information:
Given the measures of prism is length = 8cm, breadth = 6 cm, height = 5 cm
The formula for volume of prism = 1/2 l*b*h
= 1/2 8*6*5
= 120 cubic centimeter
Hence the volume of prism is 120 cubic centimeter.
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