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ExtremeBDS [4]
4 years ago
5

A sphere has a radius of 6 meters. A second sphere has a radius of 3 meters. What is the difference of the volumes of the sphere

s? The volume of the larger sphere is π cubic meters greater than the volume of the smaller sphere.
Mathematics
1 answer:
Naily [24]4 years ago
3 0

Answer:

Step-by-step explanation:

volume of sphere = (4/3)πr³

Difference= [(4/3)*π*6³]-[(4/3)*π*3³]

=\pi*[(\frac{4}{3}*6*6*6) - (\frac{4}{3}*3*3*3)]\\\\=\pi*[(4*2*6*6)-(4*3*3)]\\\\=\pi *[288-36]\\\\=252\pi

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5. Firewood is often sold by the cord. A cord of wood is a bundle measuring 4 feet by 4 feet by 8 feet. What's the volume of a c
Eduardwww [97]
V = L *  W * H
V = 4 * 4 * 8
V = 16 * 8
V = 128 cubic ft
7 0
3 years ago
Find the value of x. Round the length to the nearest tenth.
STALIN [3.7K]

Answer:

x = 5.13 yards to the nearest tenth

Step-by-step explanation:

The diagram is redrawn and labelled in the attached photo.

It is labelled as triangle ABC. Angle A is determined to be 25 degrees. This is because it is alternate to 25 degrees at the top.

To find x, we will apply trigonometric ratio

Tan # =opposite side / adjacent side

Where # = 25 degrees

Opposite side = x

Adjacent side = 11

Tan 25 = x/11

x = 11tan25

x = 11× 0.4663

x = 5.1293 yards

x = 5.13 yards to the nearest tenth.

3 0
3 years ago
1) Sandra drinks one and a half litres of water in a day. How many litres of water does she drink in a week?
saw5 [17]

Answer:

1. 10.5 liters

2. 1,500 cups of tea

3. 960 milliliters

4. 1/4 a liter

Step-by-step explanation:

1. If there are 7 days in a week, and she drinks 1.5 liters a day, we just multiply 1.5 (liters) x 7 (days) = 10.5 liters

2. There are 1000 milliliters in 1 liter. Multiply 1.5 liters by 1000 milliliters = 1,500 milliliters

3. If you multiply 800 by 0.2 (20%) you will get 160. Then add 160 + 800 = 960 milliliters

4. If you look at the fraction wall I included, you will see how there are 4/4 in 1 liter, and 2/2 in 1 liter. Half of a liter (1/2) is the same as 2/4. If you were to subtract 3/4 from 2/4, you'd get 1/4 left.

Hope that helps!

3 0
3 years ago
Read 2 more answers
a local little League has a total of 60 players of whom 20%are left handed .how many left handed players are there?​
valentinak56 [21]

Answer:

Step-by-step explanation:

left handed players : 20% of 60

turn ur percent to a decimal...." of " means multiply

0.20 * 60 = 12 are left handed

7 0
4 years ago
Read 2 more answers
Please helppp me with this math problem
ladessa [460]

Answer:

length: 38 feet

width: 10 feet

area: 380 ft²

Step-by-step explanation:

The scale between the drawing and the actual studio is 2 in : 5 ft. If we divide both sides by 2, we find that the scale is 1 in : 2.5 feet.

For the first number, 15.2 inches, if we multiply it by 2.5 and change the label to "feet", we can find the real length.

15.2 * 2.5 = 38.

The length is 38 feet.

For the width, do the same thing.

4 * 2.5 = 10

The width is 10 feet.

Area is length times width. So if we plug in the numbers we just found:

38 * 10 = 380.

The area is 380 ft²

4 0
3 years ago
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