All categories

3 years ago

Zuri made 2 spheres using plaster. The smaller sphere has a radius of 6 cm. The larger sphere has a radius of 24 cm.

1 answer:

7 0

Since we are dealing with volume, when one object is 4 times bigger than another, the difference in volume is 4^3 = 64.

6 cm sphere = 4/3 *PI * 6^3
6 cm sphere = 4/3 *PI * 216
6 cm sphere = 904.78 cc

24 cm sphere = 4/3 *PI * 24^3
24 cm sphere = 4/3 *PI * 13,824
24 cm sphere = 57,905.84 cc

Comparing the volumes: 57,905.84 / 904.78 = 64

You might be interested in

A survey of 90 men found that an average amount spent on St. Patrick's day of $55 with a standard deviation of $18. A similar su

dem82 [27]

Answer:

The value of the test statistic is 4.70.

Step-by-step explanation:

The hypothesis for this test can be defined as follows:

H₀: Men do not spend more than women on St. Patrick's day, i.e. μ₁ = μ₂.

Hₐ: Men spend more than women on St. Patrick's day, i.e. μ₁ > μ₂.

The population standard deviations are not known.

So a t-distribution will be used to perform the test.

The test statistic for the test of difference between mean is:

$t=\frac{\bar x_{1}-\bar x_{2}}{\sqrt{\frac{s^{2}_{1}}{n_{1}}+\frac{s^{2}_{2}}{n_{2}}} }$

Given:

$\bar x_{1}=55\\s_{1}=18\\n_{1}=90\\\bar x_{1}=44\\s_{1}=16\\n_{1}=86$

Compute the value of the test statistic as follows:

$t=\frac{\bar x_{1}-\bar x_{2}}{\sqrt{\frac{s^{2}_{1}}{n_{1}}+\frac{s^{2}_{2}}{n_{2}}} }=\frac{55-44}{\sqrt{\frac{15^{2}}{90}+\frac{16^{2}}{86} }}=4.70$

Thus, the value of the test statistic is 4.70.

7 0

3 years ago

It costs $200.00 to rent the mini-golf course, plus $7.25 per person. What would be the total cos

igor_vitrenko [27]

$417.50 should be the correct answer you just multiply the $7.25 to 30 and then add the $200.

7 0

2 years ago

Read 2 more answers

In circle L with KNM= 53, find the angle measure of minor arc KM

Anestetic [448]

Answer:

106

Step-by-step explanation:

8 0

3 years ago

Please answer both questions and Show Work... I will mark you brainliest and give you five starts

netineya [11]

Answer:

Step-by-step explanation:

For each problem you need to make sure that the angles are the same.

So x + 22 = 90

x = 90 -22 = 68 degree

For the second problem

7x + 10 = 8x

10 = 8x -7x

x = 10 degree

7 0

2 years ago

√ 5 ( 3 √ 2 + 5 √ 5 )

Nutka1998 [239]

Answer:

Thanks for free pointsThanks for free pointsThanks for free pointsThanks for free pointsThanks for free points

Step-by-step explanation:

vThanks for free pointsThanks for free pointsThanks for free pointsThanks for free pointsThanks for free points

4 0

3 years ago