Answer: He must have atleast 98 points on the next exam in order to get an average of 92 points.
Step-by-step explanation: To calculate average, you need to add all the numbers given, and divide the sum by how many numbers there are. 87 + 89 + 94 + 98 (equals 368), and divide 368 by 4. You will get the average of 92 as its result.
Find the value of x
The value of x for the missing lengths in the given chords in the circle is; x = 4
How to Use the Intersecting Chord Theorem?The intersecting chords theorem is a statement in elementary geometry that describes a relation of the four line segments created by two intersecting chords within a circle.
Thus, for two chords AC and BD intersecting in a point S the following equation holds: AS * SC = BS * SD
Thus, for this question;
8(x + 2) = 12x
8x + 16 = 12x
12x - 8x = 16
4x = 16
x = 16/4
x = 4
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Figure ABCD is transformed to figure A prime B prime C prime D prime, as shown below:
A coordinate grid is shown from negative 5 to 0 to 5 on both x- and y-axes. A polygon ABCD has A at ordered pair 2, 3, B at ordered pair 4, 4, C at ordered pair 3, 1, D at ordered pair 2, 1. A polygon A prime B prime C prime D prime has A prime at ordered pair negative 1, 3, B prime at ordered pair negative 3, 4, C prime at ordered pair negative 2, 1, D prime at ordered pair negative 1, 1.
Which of the following sequences of transformations is used to obtain figure A prime B prime C prime D prime from figure ABCD?
The sequence of transformations used to obtain figure A'B'C'D'from figure ABCD are a reflection across the y-axis followed by a horizontal translation 1 unit right
Complete questionFigure ABCD is transformed to figure A'B'C'D', as shown below: (see attachment)
Which of the following sequences of transformations is used to obtain figure A'B'C'D'from figure ABCD?
How to determine the transformation?From the attached figure, we can see that:
ABCD and A'B'C'D' are on either sides of the y-axis.
This means that ABCD is first reflected across the y-axis.
ABCD is 2 units from the y-axis, while A'B'C'D' is 1 unit from the y-axis.
This means that the reflection is followed by a translation.
The unit of translation is:
Unit = 2 - 1
Evaluate
Unit = 1
1 represents a right translation
Hence, the sequence of transformations are a reflection across the y-axis followed by a horizontal translation 1 unit right
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The table shows the results of a survey of students in two math classes.
Find P(more than 1 hour of TV | 6th period class). Round to the nearest thousandth. Be sure to show and explain your work.
P(more than 1 hour of TV | 6th period class) is 0.352.
What is the probability?Probability determines the odds that a random event would happen. The odds of the random event happening lie between 0 and 1.
P(more than 1 hour of TV | 6th period class) = number of 6th period class students who watch tv for more than an hour / total number of students surveyed
12 / (12 + 9 + 5 + 8)
12 / 34 = 0.352
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A contemporary building has a window in the shape of a parallelogram with a base of 90 in and an adjacent side of 40 in. How many inches of trim are needed to surround the window?
260 inches of trim are needed to surround the window.
What is the surface area?The total land area of all the faces of a three-dimensional object is its surface area. When we wish to wrap something in real life, we employ the notion of surface areas of distinct things.
Actually, all we need is a trim that is the same size as our window and equal to the parallelogram's circumference, which is
The sum of the side is;
⇒Length of lower side + Length of the upper side
⇒ 90+90
⇒180 inches
The sum of adjacent sides;
Sum of adjacent sides = 40+40
Sum of adjacent sides = 80 inches
The length you should trim is needed to surround the window is found as;
⇒ 180 inches + 80 inches
⇒260 inches
Hence,260 inches of trim are needed to surround the window.
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or
Soda is often packaged in cans that are supposed to contain 12 ounces. However, no
manufacturing plant is perfect and so there might be slight errors. For example, Sam's Splendid
Soda company has verified that the amount of soda in their cans has a normal distribution with
a mean of 12 ounces and a standard deviation of 0.7 ounces. Although this is made up, it's not
completely divorced from the truth.
1. You open a can of Sam's and realize there are only 11.6 oz in the can. What is the
probability that a single can will contain 11.6 ounces or less of soda? (2 points)
2. Troubled by the under-filled soda, you decide to empty out all the cans in a six pack of Sam's
Soda and find that the mean amount of soda in all the cans is 11.6 ounces. What is the
probability that six pack will have a mean of 11.6 ounces or less of soda? (2 points)
3. Not satisfied with the information you figured out in #2, you take a case (36 cans) and
empty out all the cans of Sam's Soda and find that the mean amount of soda in all the cans is
11.6 ounces. What is the probability that case will have a mean of 11.6 ounces or less of soda?
(2 points)
4. Draw three normal distributions on the same set of axes or with the same scale to show
how the probabilities decrease from one can to six cans to 36 cans even though we're looking
at "less than 11.6 ounces." (2 points)
5. Use the graphs and your own understanding of the Central Limit Theorem to write a few
sentences explaining what is happening here. (2)
The probability that a single can will contain 11.6 ounces or less of soda is 0.2843
Probability that a can contains 11.6 ounces or lessThe given parameters are:
x = 11.6
Mean = 12
Standard deviation = 0.7
Calculate the z value using:
[tex]z = \frac{x - \bar x}{\sigma}[/tex]
This gives
[tex]z = \frac{11.6-12}{0.7}[/tex]
z = -0.57
The probability is then calculated as:
P(x ≤ 11.6) = P(z ≤ -0.57)
Using the z table of probabilities, we have:
P(x ≤ 11.6) = 0.2843
Probability that a pack contains 11.6 ounces or lessIn (a), the probability that a can contains 11.6 ounces or less is 0.2843
The probability that all cans in a pack contains 11.6 ounces or less is
P(6) = 0.2843^6
P(6) = 0.00053
Probability that a case contains 11.6 ounces or lessIn (a), the probability that a can contains 11.6 ounces or less is 0.2843
The probability that all cans in a case contains 11.6 ounces or less is
P(36) = 0.2843^36
P(36) ≈ 0
Draw three normal distributionsSee attachment for the normal distributions
The happening on the graphThe summary of the graph is that, as the sample size increases the probability decreases
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How can I solve this? Thank you
The labeled angles are both equal to c by the corresponding angles theorem.
Thus, a+b=c by the exterior angle theorem.
24. Show and explain clearly, how you would solve the following problem using John Mason's Model for problem solving: A lady rears goats and fowls in her backyard. She observed that there were 42 eyes and 66 legs in her backyard. How many fowls and how many goats are in the yard?
The number of fowls is 9, and the number of goats is 12 if there were 42 eyes and 66 legs in her backyard.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
Let x be the number of fowls and
y be the number of goats
Then total eyes = 2x + 2y
Because both have two eyes
2x + 2y = 42 ..(1)
Total legs = 2x + 4y
fowl has two legs and a goat has 4 legs
2x + 4y = 66 ..(2)
After solving two linear equation:
-2y = -24
y = 12
x = 9
Thus, the number of fowls is 9, and the number of goats is 12 if there were 42 eyes and 66 legs in her backyard.
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Which angles would the consecutive interior angles theorem state are supplementary?
Answer:
<3 and <5<4 and <6
Step-by-step explanation:
Now that we know how to identify consecutive interior angles, let’s talk about the theorem. The consecutive interior angles theorem states that when the two lines are parallel, then the consecutive interior angles are supplementary to each other. Supplementary means that the two angles add up to 180 degrees.
How do I graph y−3=1/2(x+3) on this graph? :c
From point (0, 9/2) and (-9, 0) we get a straight line.
What is Straight line?A straight line is an infinite length line that does not have any curves on it. A straight line can be formed between two points also but both the ends extend to infinity.
Here, given equation:
(y − 3) = 1/2(x + 3)
at x = 0,
y - 3 = 1/2 (0 + 3)
y - 3 = 1/2 X 3
y = 3/2 + 3
y = 9/2
at y = 0,
0 - 3 = 1/2 (x + 3)
-3 = 1/2 (x + 3)
-6 = x + 3
x = -6 - 3
x = -9
Thus, from point (0, 9/2) and (-9, 0) we get a straight line.
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Solve the problem.
Determine dy/dt for x^3 + y^3 = 9 given x = 1, y = 2, and dx/dt= -3
Differentiate both sides with respect to [tex]t[/tex], treating both [tex]x[/tex] and [tex]y[/tex] as functions of [tex]t[/tex].
[tex]x^3 + y^3 = 9 \implies 3x^2 \dfrac{dx}{dt} + 3y^2 \dfrac{dy}{dt} = 0[/tex]
Then when [tex]x=1[/tex], [tex]y=2[/tex] and [tex]\frac{dx}{dt}=-3[/tex], we get
[tex]3\times1^2\times(-3) + 3\times2^2\dfrac{dy}{dt} = 0 \implies \dfrac{dy}{dt} = \dfrac9{12} = \boxed{\frac34}[/tex]
How is the two point formula used to find the equation of a line when 2 points are known? a. taking the change in y over the change in x c. dividing the first y by the first x b. taking the change in x over the change in y d. dividing the first x by the first y Please select the best answer from the choices provided A B C D
Taking the change in y over the change in x. Then the correct option is A.
What is the equation of a line passing through two points?Suppose the given points are (x₁, y₁) and (x₂, y₂), then the equation of the straight line joining both two points is given by
[tex]\rm (y - y_1) = \left [ \dfrac{y_2 - y_1}{x_2 - x_1} \right ] (x -x_1)[/tex]
The equation of the line can be determined by the two known points.
Taking the change in y over the change in x.
Then the correct option is A.
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If “a” is a non zero constant, what is the maximum number of turns for the graph of
y = x³ + ax² - 7x+10
The maximum number of turns for the graph given by the function is; 2.
What is the maximum number of turns for the graph?It follows from the task content that the graph given is that of a cubic function. On this note, it follows that the graph has 2 turning points.
This follows from the fact that the degree of the polynomial is 3 and hence, the maximum number of turns on the graph is 2.
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. The two bottles are similar in shape. The larger bottle holds 100 m/ of perfume. Calculate how many millilitres of perfume the smaller bottle holds.The length of the larger bottle is 10cm.the length of the smaller bottle is 5cm
Answer:
The smaller bottle holds 12.5 ml of perfume.
====================
GivenTwo bottles of similar shape;Larger bottle has volume of 100 ml;The length of larger bottle is 10 cm;The length of smaller bottle is 5 cm.To find The volume of smaller bottle.SolutionFind the scale factor, the ratio of corresponding dimensions:
[tex]k = 5/10 = 1/2[/tex]We know the volume is the function of three dimensions, therefore the ratio of volumes is the cube of the scale factor:
[tex]V_{small}/V_{large} = k^3\\[/tex]Substitute the known values and find the volume of small bottle:
[tex]V_{small}/100= (1/2)^3\\[/tex][tex]V_{small}/100= 1/8[/tex][tex]V_{small}= 1/8*100=12.5[/tex]The smaller bottle holds 12.5 ml of perfume.
The smaller bottle holds 12.5 ml of perfume.
I solved it and came with this result.
Discriminat step by step of x^2+4x+5=0
Answer:
-4
Step-by-step explanation:
x^2+4x+5=0
a=1,b=4^1 C=5
4^2-4×1×5
-4
pls i need to pass this class i wna graduate
Answer:
[tex]\boxed{\sf x= -29.5}[/tex]
Step-by-step explanation:
[tex]\sf \sqrt{-2x+5}-3=5[/tex]
[tex]\sf \sqrt{-2x+5}=8[/tex]
[tex]\sf -2x+5=64[/tex]
[tex]\sf -2x=59[/tex]
[tex]\sf \cfrac{-2x}{-2}=\cfrac{59}{-2}[/tex]
Therefore, x = -29.5.
20 people have volunteered for a 5-person neighborhood advocacy committee. 10 of them are homeowners and the rest are local business owners. How many ways are there to select the 5-person committee such that exactly 2 local business owners are represented?
We have that the ways 5-person committee such that exactly 2 local business owners are represented is mathematically given as
N=5940
What is Probability?Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
The Probability that 2 local business owners are represented on the committee is given by finding the ways they can be seated amongst the 5
Generally, 2 local business owners are represented is mathematically given as
N=11C3 x 9C2
Therefore
N=165 x 36
N=5940
Therefore the way 5-person committee such that exactly 2 local business owners are represented is mathematically given as
N=5940
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for
If a study determines the difference in average salary
subpopulations of mechanical engineers and civil
engineers is NOT significant, then the subpopulations
of mechanical and civil engineers are
different
salaries.
A
Guaranteed not to be earning
B
Not earning
C) Earning very
D Definitely earning
A mean is an arithmetic average of a set of observations. The correct option is B.
What is Mean?A mean is an arithmetic average of a set of observations. it is given by the formula,
Mean = (Sum of observations)/Number of observations
The average pay does not differ significantly since the average wage for subpopulations is not significant. As a result, the subpopulations of mechanical and civil engineers are Not earning different salaries.
Hence, the correct option is B.
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Solve the equation.
6(x−1)6/7=12
Answer:
Linear Equations In One Variable =
[6(x-1)6] / 7 = 12
[(6x - 6)6] = 84
[36x - 36] = 84
36x = 84 + 36
36x = 120
x = 120/36
x = 10/3
equation solved (Answer : 10/3)
The movement of the progress bar may be uneven because questions can be worth more or less (including zera
Round 608 to the nearest hundred.
O 610
Type here to search
O 700
O 500
O 600
4
Oi
1
Answer:
600
Step-by-step explanation:
Because the tens digit is less than 5, round down to 600
Hello all! Please help me out with this.
I want to find a certain number which I will call Y. It is four times as great as another number which is two less than twenty. What is Y?
Answer:
Y=72
Step-by-step explanation:
First we set up the equation which is (20-2) times 4=Y
Then we solve, 20 minus 2 is risk since it is in the parentheses. 20 minus 2 is 18.
After that 18 times 4 is 72
Y=72
This table gives a few (x,y)(x,y)left parenthesis, x, comma, y, right parenthesis pairs of a line in the coordinate plane. xxx yyy -12−12minus, 12 141414 -2−2minus, 2 212121 888 282828 What is the xxx-intercept of the line? ((left parenthesis ,,comma ))
Answer:
(-32, 0)
Step-by-step explanation:
Answer:
(-32,0)
Step-by-step explanation:
Simplify 1-4 can you show how you got the answer on a sheet of paper.
Answer:
to solve fractions such as
1 1/3
first multiple the denominator with the whole no.
and then add with the numerator
here 3 * 1 + 1 /3
= 4/3
1 2/3
= 3*1 + 2 /3
5/3
PLEASE HELP QUICK ILL GIVE HIGH POINT COUNT, BRAINLIEST, FIVE STARS, AND A THANKS IF YOU ANSWER WRITE
(Please use the numbers)
Complete the Magic Square
The image is attached with the answer.
What is a Magic Square ?A magic square is a 3*3 , 4*4 ,5*5 square in which the magic sum is constant for all the columns and rows and even diagonally the sum is same.
The empty squares have been filled and the image has been attached.
The magic sum is 0.81
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Line m passes through the points (-4,3) and (-4,7). What is the slope of the line that is parallel to line m?
Answer:
undefined
Step-by-step explanation:
Since line m passes through two points that have the same x-value but different y values, line m is horizontal to the y-axis which has an undefined slope.
Set up a linear system and solve. A cash register contains $5 bills and $50 bills with a total value of $345. If there are 15 bills total, then how many of each does the register contain?
Answer:
6 $50 bills and 9 $5 bills
Step-by-step explanation:
Let's let x = the number of $5 bills, and y = the number of $50 bills. With this, we can set up two equations:
5x + 50y = 345
x + y = 15
Because there is $345 total in the register, that means that 5 times the number of $5 bills plus 50 times the number of $50 bills would equal 345. And there are 15 bills total, so the numbers added is 15. Now, we can solve these equations through substitution:
x + y = 15
x = 15 - y
Now, plug in (15 - y) for x into the other equation, and solve for y:
5(15 - y) + 50y = 345
75 - 5 y + 50y = 345
75 + 45y = 345
45y = 270
y = 6
Since y is 6, that means we have 6 $50 bills. And there are 15 bills total, so there are 9 $5 bills. (15 - 6 = 9)
A right cylinder has a radius of 5 and a height of 9. What is its surface area?
A. 45 units²
B. 140 units²
C. 90 units²
D. 70 units²
Answer:
the answer is B. 140 units²
The temperature is dropping at a rate of five degrees per hour.
Let d represent the number of degrees the temperature drops.
Let t represent the number of hours that pass.
Which is the dependent variable?
Othe number of hours
Othe number of degrees the temperature drops
O the rate at which the temperature drops
the day of the week
Answer:
The rate at which the temperature drops.
Step-by-step explanation:
In science, the dependent variable is what you are measuring.
In math, the dependent variable is what you are evaluating.
Same idea, different topic.
Answer:
d=temp drop
t=hours
dependent variable is the temperature drops because the number of hours will tell you how much the temprature drops
this is the equation
total temp drops=t x 5
hope this helps!?
300 people went on a trip. 20% chose hiking. how many people chose hiking?
Based only on the information given in the diagram, it is guaranteed that
ARST AUVW.
R
72°
S
TV
18⁰
A. True
B. False
Answer:
TrueExplanation -
In triangle SRT
angle R = 72°
angle T = 90°
angle S = 18° ( by angle sum property of a triangle)
in triangle VWU
angle W = 90°
angle V = 18°
angle W = angle T
side RS = side uv ( if two corresponding angles of two triangles are equal then their sides are also equal)
angle R = angle V
by angle side angle criteria both the triangles are congruent.
Help please! Geometry word problem!
By applying reflection theory and constructing a geometric system of two proportional right triangles, the height of the stainless steel globe is approximately 140 ft.
How to estimate the height of the stainless steel globe
By physics we know that both the angle of incidence and the angle of reflection are same. Thus, we have a geometric system formed by two proportional right triangles:
5.6 ft / 4 ft = h / 100 ft
h = (5.6 ft × 100 ft) / 4ft
h = 140 ft
By applying reflection theory and constructing a geometric system of two proportional right triangles, the height of the stainless steel globe is approximately 140 ft.
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