I need help asap please

I Need Help Asap Please

Answers

Answer 1

Answer:

12.36

Step-by-step explanation:

the standard deviation is 12.36123 or 12.36 rounded.


Related Questions

Calculate each probability, given that P(A) = 0.5, P(B) = 0.4 and P(A and B) = 0.1.
P(A | B). Show work!!

Answers

The answer should be 0.21

Answer:

P(A|B) =0.25

Step-by-step explanation:

P(A|B) = P(A and B) / P(B) = 0.1/0.4 =0.25

Help me fast
Can u pls explain the question

Answers

AB=AD=8CM

Step-by-step explanation:

I Go To that school

PLEASE HELP ME IVE BEEN SITTING HERE FOR HOURS

Answers

Answer:

0-9: 4

10-19: 4

20-29: 1

30-39: 4

40-49: 2

Step-by-step explanation:

Since frequency means how many times it showed up in the list

this all adds up to 15, making it an easy check.

hope this helps:)

What’s the circumference to this problem?

Answers

Answer:

The formula to get the circumference of a circle is [tex]C=2*\pi * r[/tex].  We can then input the value and we get that [tex]C=2*\pi*4[/tex] and as we solve it more the final answer that we get is [tex]C=25.133[/tex].

Hope this helps!  Let me know if you have any questions

Select the correct answer from each drop-down menu.
A researcher is examining the claims made by a water softener salt manufacturer. He performs an experiment using water from a variety of
sources. For each water source, he has sample with no treatment and a sample treated with the recommended amount of the water softener
salt.
He then tests each sample to measure the softness and compares the results, determining that the claims made by the manufacturer are true.
The conclusion drawn from the study is
v because the sample is
v . In this instance, an
v study was
performed.

Answers

The conclusion drawn from the study is valid because the sample is homogenous. In this instance, an experimental study was performed.

What is an experimental study?

An experimental study can be defined as a quantitative research method that is used by a researcher to determine and show the effects of changes in the dependent variable, while placing other relevant independent variables under control.

Based on the experimental study conducted by using water from a variety of sources, the conclusion which can be drawn from this study is valid because the sample is homogenous.

In this instance, we can infer and logically deduce that an experimental study was performed.

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question 7. HELP ME WITH THIS

Answers

Reduce the expression, if possible, by cancelling the common factors.

−3 is your answer!

have a nice day! please mark brainliest :)

.

if r=5 and h=3cm what is the volume of the cone (assume pi =3.14

Answers

Answer:

should be 78.5

Step-by-step explanation:

the formula for volume of a cone is V = pi^2 x H/3

so if you plug in the values you get V= 3.14 x5^2 x3/3 making the awsnser 78.5

Arrange the hyperbolas in increasing order of the horizontal widths of their asymptote rectangles.

Answers

The  increasing order of the horizontal widths of their asymptote rectangles is dependent on the values gotten from  y = ± x.

What is a Hyperbola?

This is defined as a two-branched open curve formed by the intersection of a plane perpendicular to the bases of a double cone.

The rectangular hyperbola has two asymptotes which are defined as y = ± x in this scenario.

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Type the correct answer in the box. use numerals instead of words. a population of beetles increases by 5% every year. if at the start of the year the population is at 10,000 beetles, what will its population be after three years? at the end of the third year the population of beetles will be .

Answers

From the calculations, we can see that the number of beetles after three years is 11618 beetles.

What is an exponential problem?

The term "exponential problem" has to do with any problem in which the increase or decrease occurs exponentially.

In this case we have P = Poe^rt

Po = 10,000

r = 0.05

t = 3

P =  10,000 e^(0.05 * 3)

P= 11618 beetles

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does someone mind helping me with this problem? Thank you!

Answers

Anyea

Step-by-step explanation:

Answer:

180 inches squared (^2)

Step-by-step explanation:

To find the area of a rectangle, simply multiply the length by the width (15*12)

Don't forget it is squared! Good luck!

Using the image above, what is the measure of Angle E? Round to the nearest hundredth

Answers

Answer:

the answer is 30°

Step-by-step explanation:

180°-90°-60°

Please someone help me answer this! I will return back

Answers

Answer:

Negative correlation

Step-by-step explanation:

You can draw a line of best fit the would go downhill from left to right which would be a negative slope. This means it has a negative correlation.

2. a science museum has a spherical model of the moon with a diameter of 6.4 ft. what is the volume of the model to the nearest cubic foot? show your work.

Answers

The volume of the model to the nearest cubic foot is 137 ft³

Volume of a sphere

Volume of a sphere = 4/3πr³

π = 3.14Diameter = 6.4 ft

Radius, r = diameter / 2

= 6.4 ft / 2

= 3.2 ft

Volume of a sphere = 4/3πr³

= 4/3 × 3.14 × 3.2³

= 4/3 × 3.14 × 32.768

= 411.56608 / 3

= 137.188693333333

Approximately,

Volume of the sphere = 137 ft³

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Solve for x. 8x-6=10x-8

Answers

Answer:

x=1

Step-by-step explanation:Let's solve your equation step-by-step.8x−6=10x−8Step 1: Subtract 10x from both sides.8x−6−10x=10x−8−10x−2x−6=−8Step 2: Add 6 to both sides.−2x−6+6=−8+6−2x=−2Step 3: Divide both sides by -2.−2x−2=−2−2 x=1

Complete the function table

Answers

Answer:

-3. -5

-2. -4

-1. -3

0. -2

1. -1

formula is f(x)=x-2

If AD=2:5 the coordinates of point F are. Point E has the coordinates (3.8, -3) and the coordinates of point D are

Answers

Using the assumed coordinates of point F, the coordinates of point D are (3,3)

How to determine the coordinates of D?

The given parameters are:

Ratio, m : n = 2 : 5

E = (3.8, -3)

The coordinates of point D is calculated using:

[tex]D = \frac{1}{m + n} * (mx_2 +nx_1,my_2 +ny_1)[/tex]

So, we have:

[tex]D = \frac{1}{2 + 5} * (2x_2 +5*3.8,2y_2 +5*-3)[/tex]

Evaluate the sum and the products

[tex]D = \frac{1}{7} * (2x_2 +18,2y_2 -15)[/tex]

Assume the coordinates of point F are:

F = (1.5,18);

The equation becomes

[tex]D = \frac{1}{7} * (2*1.5 +18,2*18 -15)[/tex]

Evaluate

[tex]D = \frac{1}{7} * (21,21)[/tex]

This gives

D = (3,3)

Hence, the coordinates of point D are (3,3)

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24. Write a formula to estimate the amount of material required to cover Firm 3's structure, not including the floor. Explain your reasoning. (2 points: 1 for the formula, 1 for the explanation)

Answers

Formula to estimate the amount of material required to cover firm 1's structure not including the floor is; πr² + πrh

How to Generate Formulas?

From the complete question seen online,

The given parameters are;

The shape of the firm 1's structure = Cylindrical shape

The radius of the firm 1's structure = 35

Height of firm 1 structure = 60

The amount of material to cover the firm 1 structure not including the floor = The surface area of a cylinder excluding the base

The formula for the surface area of a cylinder = 2πr² + πrh

If we take away the area of the base, we have;

Surface area of a cylinder excluding the case  = 2πr² + πrh - πr² = πr² + πrh

Formula to estimate the amount of material required to cover firm 1's structure not including the floor = πr² + πrh

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Kim asked the first 50 kids to school in the morning how they feel about waking up early. she uses their response to predict the responses for the entire school. was her survey random?

Answers

Kim's method of sampling the students in the given scenario is said to; It is not a random survey.

What is a random sample?

Random sampling is defined as a sampling technique whereby each sample has an equal probability of being chosen. This means that a sample chosen randomly is meant to be an unbiased representation of the total population.

In this question, we are told that Kim asked the first 50 kids to school in the morning about a question and used their responses to arrive at a conclusion.

Now, Kim's method is not random because it is biased as only those who came earliest were asked.

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(SHOW THE SOLUTION) ​

Answers

Step-by-step explanation:

so, you did not pay attention to even the simplest of facts in the class ?

the radius is always half of the diameter, or (in other words), the diameter is always twice the radius.

that is really all there is to this.

please tell me you need actual help to divide something by 2 ?

you need me to be your calculator ? posting the questing and then typing the results in from here is more effort than just to use your own calculator.

1. 12.6/2 = 6.3 cm

2. 31.08/2 = 15.54 ft

3. (10 7/11)/2 = (110/11 + 7/11)/2 = 117/11 / 2 =

= 117/22 = 5 7/22 cm

(you noticed something ?)

4. sqrt(54)/2 = sqrt (54/4) = sqrt(27/2) = sqrt(13.5) =

= 3.674234614... m

5. 10.125/2 = (10 1/8)/2 = 5 1/16 = 5.0625 in

(see again under 3.)

A paint mixes green and white paint in the ratio 13:50. 4 litres of white paint are used. How much green is used? please help me​

Answers

Answer:

1.04 liters

Step-by-step explanation:

If 50 is 4liters

Then 13 is x

Use this below equation

Value t is for value y then how much for value z

[tex]x = \frac{t}{y} \times z[/tex]

X = 4/50 *13

X = 1.04liters

Or

13/50 = x/4 (cross multiply)

50X = 52

X = 52/50

X = 1.04 liters

At the beginning of every gym class, Mr. Gordon leads the class in a warm-up. In today's warm-up, the class does jumping jacks for 3 minutes. Erin does 54 jumping jacks in that time. Mr. Gordon says the class will do jumping jacks for 4 minutes tomorrow.
If Erin does jumping jacks at the same rate tomorrow, how many will she do?

Answers

Answer:

72 jumping jacks

Step-by-step explanation:

54 divided by 3 to get per minute and you would get 18 per minute then add to 54 for when she does for 4 minutes

Answer:

72 jumping jacks

Step-by-step explanation:

what is the slope of the liner equation y=7x-2​

Answers

Answer:

Hence, slope of y=7x−2 is 7 and y -intercept is −2.

Step-by-step explanation:

The equation of any straight line can be written as y=mx+c, where m is its slope and c is its y-intercept.

Comparing the equation y=7x−2 with the standard form of the equation, we get:

m=7,c=−2

Hence, slope of y=7x−2 is 7  and y -intercept is −2

Hope this helps :)

The radius of the surface of the water in the tank is increasing at a rate of 0.25m/min. at what rate is the area of the surface changing when the radius is 1.2m?

Answers

Answer:

1.88 m^2/min to the nearest hundredth.

Step-by-step explanation:

Area = π r^2

Using Calculus notation:

dA/dr = 2π r

dr/dt = 0.25  (given)

So the rate of change of area

dA/dt = dA/dr * dr/dt

So when r = 1.2

dA/dt = 2 π * 1.2 * 0.25

= 0.6π  m^2/min.

= 1.88 m^2/min to the nearest hundredth.

12 + 5 + 32 × 10 − 5 =
(12 + 5) + 32 × (10 − 5) =

Answers

Exercise number 1.12 + 5 + 32 × 10 − 5

Add 12 and 5 to get 17.

17 + 32 × 10 − 5

Multiply 32 and 10 to get 320.

17 + 320 − 5

Add 17 and 320 to get 337.

337−5

Subtract 5 from 337 to get 332.

332 ===> Answer

Exercise number 2.(12 + 5) + 32 × (10 − 5)

Add 12 and 5 to get 17

17 + 32 (10 − 5)

Subtract 5 from 10 to get 5.

17 + 32 × 5

Multiply 32 and 5 to get 160.

17+160

Add 17 and 160 to get 177.

177 ===> Answer

Please belpppp don’t understand

Answers

Answer:

[tex]3w^2\sqrt[4]{2w^3}[/tex]

Step-by-step explanation:

hope this helps!:)

HELP ASAP PLSSSSSSSSS

(image is below)
A scatter plot with a line is shown below:

Graph shows numbers from 0 to 10 at increments of 1 on the x axis and number s from 0 to 15 at increments of 1 on the y axis. Scatter plot shows ordered pairs 0, 1 and 1, 1 and 2, 3 and 3, 6 and 4, 6 and 5, 8 and 6, 9 and 7, 10 and 8, 12 and 9, 13 and 10, 15. A line joins ordered pairs 0, 0.5 and 10, 14.8.

Which statement is most likely correct about the line?

It can be a line of best fit because it is closest to most data points.
It can be a line of best fit because it passes through all the data points.
It cannot be a line of best fit because it does not pass through all the points.
It cannot be a line of best fit because it does not pass through the first and last points.

Answers

Answer:

Option 1

Step-by-step explanation:

The statement which is most likely correct about the line is :

It can be a line of best fit because it is closest to most data points.Option 1

Find the arc length and sectors perimeter of an 85 degree arc of a circle with a finger radius of 4ft

Answers

Answer:

Arc length = 5.93 ft

Perimeter = 13.93 ft

Step-by-step explanation:

85/360*2*π*4 = arc length

5.93411946 ft

Perimeter = 4+4+5.93 = 13.93 ft

Hey! So I need to study for my Algebra 1 finals can someone link me a video or give me a way to study for algebra 1. I have a week or so

Answers

Answer:

Review your state Standards.

Notes

Khan on your topic or grade level

Dealta Math

Math Nation

Solve the following system of equations by linear combination: 5x + 2y = 14 y = x – 7 (4, –3) (2, –5) (–5, 2) (–3, 4)

Answers

The solution to the system of equations is (-3,4)

How to solve the system of equations?

The equations are given as:

5x + 2y = 14

y = x – 7

Substitute y = x – 7 in the first equation

5x + 2(x - 7) = 14

Expand

5x + 2x - 14 = 14

Evaluate the like terms

7x = 28

Divide

x = 4

Substitute x = 4 in y = x – 7

y = 4 – 7

Evaluate

y = -3

Hence, the solution to the system of equations is (-3,4)

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i don't know what it means

Answers

Answer:

C. 20

8 cycles for 1 inch, times 2 is 16, + 4 is 20

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