The shape of the vertical cross section of the solid figure is Circle , Option A is the right answer.
What is a Circle ?
A circle is a round figure with all the points lying in the same plane .
It is given that
Tung rotates a square around its horizontal axis of symmetry to make a solid figure.
the shape of the vertical cross section of the solid figure will be a circle that can be seen in the image attached
The rotation image is also attached and the horizontal axis is taken as straight to show the formation of a circle.
Therefore Option A is the right answer.
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ΔXLW ≅ΔXDG.
What is the measure of DX
4.5
5.7
6.2
16.4
Answer:
16.4
Step-by-step
True or false? the interval [1,2] contains exactly two numbers - the numbers 1 and 2.
The answer is "false". The interval [1, 2] contains all the real numbers between 1 and 2 including the endpoints.
How to write and represent an interval?An interval notation is used for representing the continuous set of real values. This is the shortest way of writing inequalities.
Intervals are represented within the brackets such as square brackets or open brackets(parenthesis).
If the interval is within a square bracket, then the end values are included in the set of values.If the interval is within parenthesis, then the end values are not included in the set of values.The square brackets represent the inequalities - 'greater than or equal or 'less than or equalThe parenthesis represents the inequalities - 'greater than' or 'less thanFinding true or false:The given interval is [1, 2]
The given statement is - 'the interval [1, 2] contains exactly two numbers - the numbers 1 and 2'
The given statement is 'false'.
This is beacuse, an interval consists set of all the real values in between the two values given.
So, according to the definition, there are not only the end values but also many real values in between them.
Thus, the answer is "false". The interval [1, 2] consists of all the real values between 1 and 2 including 1 and 2.
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5x+6y +39 = 0
3y = 4x
Answer:
Step-by-step explanation:
Move all terms not containing xx from the center section of the inequality.
Inequality Form:
0<x<30<x<3
Interval Notation:
(0,3)
Answer:
y=-4
x=-3
Step-by-step explanation:
x=3y/4
5*(3y/4) +6y+39=0
15y/4+6y+39=0
3.75y+6y+39=0
9.75y=-39
y=-4
x=-3
PLEASE HURRY!! A diver jumps off a high diving board that is 33 feet above the surface of the pool with an initial upward velocity of 6 feet per second. The height of the diver above the surface of the pool can be represented by the equation −16t2+6t+33=0
. How long will the diver be in the air, to the nearest hundredth of a second?
The diver will be in the air for approximately 0.78 seconds to the nearest hundredth of a second.
The equation that represents the height of the diver above the surface of the pool is given by:
h(t) = -16t² + 6t + 33
where t is the time in seconds and h(t) is the height of the diver above the surface of the pool in feet.
The diver will be in the air until he reaches the surface of the pool, which means that his height will be 0. Therefore, we can set h(t) equal to 0 and solve for t:
-16t² + 6t + 33 = 0
We can use the quadratic formula to solve for t:
t = (-b ± sqrt(b² - 4ac)) / 2a
where a = -16, b = 6, and c = 33.
Plugging in these values, we get:
t = (-6 ± sqrt(6² - 4(-16)(33))) / 2(-16)
t = (-6 ± sqrt(36 + 2112)) / (-32)
t = (-6 ± sqrt(2148)) / (-32)
Simplifying:
t = (-6 ± 46.34) / (-32)
So we have two solutions:
t = (-6 + 46.34) / (-32) ≈ 0.78 seconds
t = (-6 - 46.34) / (-32) ≈ 2.64 seconds
Since the diver cannot be in the air for a negative amount of time, we reject the second solution.
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(Ch 8.2) True or False? In any random sample drawn from a population, the sample mean is an unbiased estimator of the population mean.
11. (Ch 8.2) A consistent estimator for the population mean a. collapses on the true parameter μ as the variance increases. b. collapses on the true parameter μ as the sample size increases. c. consistently follows a normal distribution. d. is impossible to obtain using real sample data.
12. (Ch 8.3) The Central Limit Theorem (CLT) implies that a. the population will be approximately normal if the sample size n is at least 40. b. repeated samples must be taken to obtain normality. c. the distribution of the sample mean is approximately normal for a large n. d. the sample mean is not an unbiased estimator of the population mean.
13. (Ch 8.3) True or False? The Central Limit Theorem says that, if the sample size n exceeds 30, then it must be the case that the population will be normal.
14. (Ch 8.4) True or False? A higher confidence level leads to a narrower confidence interval.
T
B
C
F
F
True , In any random sample drawn from a population, the sample mean is an unbiased estimator of the population mean.
What is the central limit theorem formula?
The central limit theorem gives a formula for the sample mean and the sample standard deviation when the population mean and standard deviation are known. This is given as follows: Sample mean = Population mean = μ μ Sample standard deviation = (Population standard deviation) / √n = σ / √n.
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What is the distance between (5, -1) and (5,-4)
1 unit
3 unit
4 unit
5 unit
Answer:
3 units
Step-by-step explanation:
Out of these numbers which ones are multiples of 7 {−7, −4, 2, 14, 21, 34, 42}
Answer:
-7, 14, 21, and 42
Step-by-step explanation:
7•-1=-7
7•2=14
7•3=21
7•6=42
this is question is 39.1 * 0.7 plz i need eplixan how to do it plz
Answer:
27.37
Step-by-step explanation:
39.1x0.7
try and use the multiplucat method as if you are mulipl whole numbers.
or add a 0 on your 0.7 it Should help if your using multiplucation method.
Answer:
27.37
Step-by-step explanation:
First multiply without the decimal points = 2737
Then add in the decimal.... 2 of them = 27.37
Justin did push-ups for the past 555 days.The following data points are the number of push-ups he did each day.
21,24,24,27,29
Find the standard deviation of the data set.
Round your answer to the nearest hundredth.
push-ups
Answer: σ: 2.76
Step-by-step explanation:
Count, N: 5
Sum, Σx: 125
Mean, μ: 25
Variance, σ2: 7.6
Steps
look at attached pic for formula
σ^2 = \(\frac{Σ(xi - μ)^{2} }{N}\)
\(\frac{(21 - 25)2 + ... + (29 - 25)2}{5}\)
⇒ \(\frac{38}{5}\)
⇒ 7.6
σ = \(\sqrt{7.6}\)
⇒ 2.756809750418
⇒ or 2.76
What function is graphed below?
Y=x/3
Y=2 x +3
Y= 2 x + 3
Y = 3x
Answer: its y=x/3
So x/3 is the slope and means the same as 1/3 x
the 1/3 shows we go up one and over 3 because slope is y/x
Hope this helps
Put this into Slope-Intercept form
x –2y = –4
Answer:
See below.
Step-by-step explanation:
x-2y=-4
*-2 *-2
x+y=8
-x -x
y=-x+8
-hope it helps
Answer:
y = 1/2x + 2⠀
please help me!?))),)$&$(
Answer:
Put a point at -5 on the Y axis.
Then move up 6 (still on the Y axis)
Then move to the right 1 (this should be the point 1,1 on the graph)
Draw a line through the points
Shade to the right of the line you drew
7, -4 and has a m=-6 slope
Answer:
An equation would be, y=6x+38
Step-by-step explanation:
Tell me if you want a step by step.
I hope this helped! :)
Answer:3x-x+2=4
Step-by-step explanation:
Im not sure if you were asking for that hopes it helps-Bella
help me pls
5(x+2)-12=3x+4
Answer:
x = 3
Step-by-step explanation:
5(x + 2)- 12 = 3x + 4
5x + 10 - 12 = 3x + 4
5x - 3x = 4 - 10 + 12
2x = 6
x = 3
Answer:
x=3
Step-by-step explanation:
5(x+2)-12= 3x +4
5x + 10 -12= 3x + 4
10-12= -2x + 4
6-12= -2x
-6= -2x
-6/ -2= 3
Which of the following is(are) the solution(s) to |x+8|=1
A. x=9
B. x= 7,9
C. x= -7, 9
D. x= -7
the diagram shows a logo
Answer:
where is the digram may i see the digram
What are the transformations of the function?
1. Vertical Shift: f(x) + 1 = 2(1/3)ˣ + 2, 2. Horizontal shift: f(x - 2) = 2(1/3)ˣ⁻² + 1, 3. Vertical stretch/compression: 3f(x) = 6(1/3)ˣ + 3, 4. Horizontal stretch/compression: f(2x) = 2(1/3)²ˣ + 1.
Describe Translation?In two-dimensional geometry, a translation can be described as moving a point or a shape horizontally, vertically, or diagonally. To translate a shape, we can move each of its points by the same vector. For example, to translate a square 3 units to the right and 2 units up, we can move each of its four vertices 3 units to the right and 2 units up.
In three-dimensional geometry, a translation can be described as moving an object in the x, y, or z direction. To translate an object, we can move each of its points by the same vector. For example, to translate a cube 2 units in the x-direction, 3 units in the y-direction, and 4 units in the z-direction, we can move each of its eight vertices by the vector (2, 3, 4).
The function f(x) = 2(1/3)ˣ + 1 can be transformed using different techniques, such as shifting, stretching, or reflecting. Here are some possible transformations:
Vertical shift: Adding a constant to the function shifts the entire graph vertically. For example, adding 1 to f(x) shifts the graph up by 1 unit. The new function is:
f(x) + 1 = 2(1/3)ˣ + 2
Horizontal shift: Adding or subtracting a constant to the input variable x shifts the graph horizontally. For example, replacing x with x - 2 shifts the graph to the right by 2 units. The new function is:
f(x - 2) = 2(1/3)ˣ⁻² + 1
Vertical stretch/compression: Multiplying the function by a constant stretches or compresses the graph vertically. For example, multiplying f(x) by 3 stretches the graph vertically by a factor of 3. The new function is:
3f(x) = 6(1/3)ˣ + 3
Horizontal stretch/compression: Multiplying or dividing the input variable x by a constant stretches or compresses the graph horizontally. For example, replacing x with 2x stretches the graph horizontally by a factor of 1/2. The new function is:
f(2x) = 2(1/3)²ˣ + 1
These are some of the possible transformations of the function f(x) = 2(1/3)^x + 1. By applying one or more of these transformations, we can obtain a new function that represents a shifted, stretched, or reflected version of the original function.
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1. Find the midpoint for each segment with the given endpoints.
a. C(-2, 5) and D(8, -12) b. E(2.5, -7) and F(-6.2, -3.8)
Answer:
a.(3,-7/2) b.(-1.85,-5.4) will the midpoints
Step-by-step explanation:
let mid point be x,y
apply mid point formula
x=(x1+x2)/2 y=(y1+y2)/2
plz mark as brainliest
The midpoint of the given line is (3,-3.5)
What is midpoint of a line ?The midpoint of a line is a point which divides the line segment into two equal parts.We can also say that a midpoint bisects a line segment.
We know when two end points of a line segment are given we can find midpoint by
M(x) = (x₁ + x₂)/2 and M(y) = (y₁ + y₂)/2.
Given points C(-2, 5) and D(8, -12)
M(x) = ( - 2 + 8 )/2
M(x) = 6/2
M(x) = 3.
M(y) = ( 5 - 12 )/2
M(y) = -7/2
M(y) = -3.5.
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is 627 divisible by 3
Answer:
yes.
Step-by-step explanation:
If you divide 627 by 3, you get 209 which is a whole number.
Hope this helped! Have a nice day!
Please give Brainliest when you can!
-Jaron
Answer:
technically speaking, yes. but if you don't want any remainders, (or decimals) then no.
Step-by-step explanation:
7 isnt divisable by anything, unless you have remanders or decimals, fractions ext. so yeah.
(Grade7geomtery) Can somebody plz help answer these questions correctly (only if u know how to do this) thx sm! :3
WILL MARK BRAINLIEST WHOEVER CAN ANSWER THESE FIRST !!!!:DDDD
Answer:
<1 = 47
<2 = 65
<3 =68
<4 = 68
Step-by-step explanation:
Find the probability that a randomly
selected point within the square falls in the
red-shaded triangle.
3
4
6
6
P = [?]
Enter as a decimal rounded to the nearest hundredth.
Answer:
16.66666%
Step-by-step explanation:
During a recent rainstorm, 8 centimeters of rain fell in Dubaku's hometown, and 2.36 centimeters of rain fell in Elliot's hometown. During the same storm, 15.19 centimeters of snow fell in Alperen's hometown.
Answer:
5.64 cm
Step-by-step explanation:
Required:How much more rain fell in Dubaku's town than in Elliot's town?
8 centimeters of rain fell in Dubaku's hometown
2.36 centimeters of rain fell in Elliot's hometown
We are asked to find how much more rain fell in Dubaku's town than in Elliot's town so it is calculated as the difference between the rain in both of there towns and is given by:
Difference in rain= 8-2.36
Difference in rain= 5.64 cm.
Therefore, 5.64 cm of more rain fell in Dubaku's town than in Elliot's town.
Answer:
5.64
Step-by-step explanation:
A statistics analyst took a random sample of size 56. The sample mean and standard deviation are 72 and 10, respectively.
a. Determine the 95% confidence interval estimate of the population mean
b. Change the simple mean to n=40, then estimate the 95% confidence interval of the population mean.
c. Describe what happens to the width of the interval when the sample mean decreases
a. The 95% confidence interval estimate of statistics analyst the population mean is [69.356, 74.644].
This means that we are 95% confident that the true population mean falls within this interval. The direct answer includes the lower limit of 69.356 and the upper limit of 74.644. The 95% confidence interval estimate for the population mean, based on the given sample of size 56, is [69.356, 74.644]. This range suggests that the true population mean has a high probability of lying between these two values. The confidence level of 95% indicates our degree of certainty regarding the accuracy of this estimate. A statistics analyst is a professional who specializes in analyzing and interpreting data using statistical techniques. They work with data from various sources, such as surveys, experiments, and observational studies, to uncover patterns, trends, and relationships that can provide insights and inform decision-making.
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in a circle with a radius of 7 feet, the radian measure of the central angle subtended by an arc with a length of 4 feet is . the area of the sector formed by the arc is square feet. assume π
Step 1: Use the formula relating the length of an arc, radius, and angle to find the angle measure in radians. The formula is `angle measure in radians = length of arc / radius`. Let θ be the angle measure.4 = θ7Dividing both sides by 7 givesθ = 4/7
Step 2: Use the formula relating the area of a sector, radius, and angle to find the area of the sector. The formula is `area of sector = ½r²θ`, where r is the radius and θ is the angle measure in radians.
Area of sector = ½(7²)(4/7)π= 49/2π= 137.29 square feet Therefore, the radian measure of the central angle subtended by an arc with a length of 4 feet is 4/7 radians. The area of the sector formed by the arc is 137.29 square feet.
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What is meant by rounding to the nearest hundredth?
Rounding to the nearest hundredth simply means rounding to two decimal places
What is meant by rounding to the nearest hundredth?From the question, we are to determine what is meant by rounding a number to the nearest hundredth.
Consider the number below
1234.567
1 is in the thousands place
2 is in the hundreds place
3 is in the tens place
4 is in the units place
5 is in the tenths place
6 is in the hundredths place
7 is in the hundredths place
Thus, rounding to the nearest hundredth means rounding to two numbers after the decimal. That is, to two decimal places
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Blake walked 7/8 Ora a mile in 1/5
of an hour. If Blake continued walking at the same rate, what is the distance he would travel in one hour?
Answer:
4.375 miles
Step-by-step explanation:
7/8/12=x/60
12x=60(7/8)
12x=52.5
x=4.375
help help help help
Answer:
abc is a triangle so ,
a is ( 9,6 )
b is ( 9,3 )
and c is ( 3,3 )
2/3y - 2/5 =5 PLS HELP
2/3y- 2/5 =5
add 2/5 on both sides:
2/3y = 5 + 2/5
Combine the fraction:
2/3y = 5 2/5
Write in improper Fraction:
2/3y = 27/5
Divide both sides by 2/3:
y = 27/5 ÷ 2/3
Change divide fraction to multiplication fraction:
y = 27/5 x 3/2
y = 81/10
Write in mixed number:
y = 8 1/10
Answer: y = 8 1/10
How to solve for (3v^3r^4)^2
Answer:
9v^6r^8
Step-by-step explanation:
3v^6 · 3r^8
11 Karl takes a ride in a taxi and is charged $2.75 for the first of a mile. He is charged $0.25 for each
additional to
of a mile traveled and gives the driver a $3.50 tip. Explain how to determine the number of
miles that Karl can ride in the taxicab for a total of $28.50 including the tip. Show your work.
I WILL GIVE HIGH POINTS JUST PLEASE HELP SOON.