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3 years ago

What’s the correct answer for this?

Mathematics

1 answer:

puteri [66]3 years ago

4 0

Answer:

Step-by-step explanation:

In the attached file

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The height of a cylinder is 10 and the area of a base is 36 pi square units. What

ollegr [7]

Answer:

1130.97336 units^3

Step-by-step explanation:

The volume of a cylinder can be found using:

$v=\pi r^2h$

We have the area of the base, but not the radius

$a=\pi r^2$

We know the area is $36\pi$ , so we can substitute that in for a

$36\pi =\pi r^2$

We want to find r, so we need to isolate it

Divide both sides by pi

36=r^2

Take the square root of both sides

6=r

Now we know the radius, and can substitute it into the volume formula, and we can substitute the height (10) in

$v=\pi r^2h$

$v=\pi 6^210$

Solve the exponent

$v=\pi 36(10)$

$v=\pi 360$

v=1130.97336

The volume is 1130.97336 units^3

6 0

4 years ago

In a right triangle ABC , C is the right angle What does sin B equal

Yuliya22 [10]

Answer:

The answer is......

COS A

4 0

3 years ago

Answer both please man. Or sorry you'll get a 1 star rating. THanks for answering guys!

Nataliya [291]

For the first one,

x = 10.

For the second one,

x = 12

5 0

3 years ago

Read 2 more answers

A company in Maryland has developed a device that can be attached to car engines, which it believes will increase the miles per

HACTEHA [7]

Answer:

About 0.72

Step-by-step explanation:

Given the data:

With device : 22.6, 23.4, 28.4, 29, 29.3, 20.0

Without device :26.9, 24.4, 20.8, 20.8, 20.2, 26.0, 28.1, 25.6

Using calculator:

With device data:

Sample size (n1) = 6

Degree of freedom (df1) = 6 - 1 = 5

Mean(m1) = 25.45

Variance (s²1) = 15.631

Without device data:

Sample size (n2) = 8

Degree of freedom (df2) = n - 1 = 7

Mean (m2) = 24.1

Variance (s²2) = 9.54

s²t = ((df1/(df1 + df2)) * s²1) + ((df2/(df1 + df2)) * s²2)

s²t = ((5/(5+7)*15.63) + ((7/(5+7))*9.54)

= ((5/12) * 15.63) + ((7/12) * 9.54) = 12.0775

s²m1 = s²t/n1 = 12.0775/6 = 2.0123

s²m2 = s²t/n2 = 12.0775/8 = 1.511

T - statistic :

Tstat = (m1 - m2)/√(s²m1 + s²m2)

Tstat = (25.45 - 24.10) / √(2.0123 + 1.511)

Tstat= 1.350/√3.5233

Tstat = 1.350 / 1.8770455

Tstat = 0.7192153 = 0.72

8 0

3 years ago

Karen is estimating how much flour she needs if each cake requires 2 2/6 cups of flour and she is making 3 cakes. Explain how ma

gregori [183]

Answer:

The answer is 7 cups

Step-by-step explanation:

1 cake-2 2/6 cups

Which can also be written as

1 cake-14/6 cups

3 cakes-x cup

Cross multiply

x=14/2

x=7

Therefore Karen needs 7 cups of flour to make 3 cakes

6 0

3 years ago