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3 years ago

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Mathematics

1 answer:

Gnoma [55]3 years ago

3 0

Answer:

your mom

Step-by-step explanation:

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Does anyone know what 1-4/8-1/8 is

san4es73 [151]

Answer ⇒ $\frac{3}{8}$

Step-by-step explanation:

$1-\frac{4}{8} -\frac{1}{8}$

⇒ $1-\frac{1}{2} -\frac{1}{8}$

⇒ $\frac{1}{2} -\frac{1}{8}$

⇒ $\frac{4}{8} -\frac{1}{8}$

⇒ $\frac{3}{8}$

5 0

2 years ago

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Please help!

777dan777 [17]

Answer:

$\begin{array}{ccc}\text{Radius}&\text{Volume of sphere}&\text{Volume of cylinder}\\&&\\1&\dfrac{4}{3}\pi &2\pi \\&&\\2&\dfrac{32}{3}\pi &16\pi \\&&\\3&36\pi &54\pi \\&&\\4&\dfrac{256}{3}\pi &128\pi \\&&\\5&\dfrac{500}{3}\pi &250\pi\end{array}$

Step-by-step explanation:

Use formulas for the volumes:

$V_{sphere}=\dfrac{4}{3}\pi r^3,\\ \\V_{cylinder}=\pi r^2h=\pi r^2\cdot 2r=2\pi r^3.$

1. When r=1,

$V_{sphere}=\dfrac{4}{3}\pi\cdot 1^3=\dfrac{4}{3}\pi,\\ \\V_{cylinder}=2\pi \cdot 1^3=2\pi.$

2. When r=2,

$V_{sphere}=\dfrac{4}{3}\pi\cdot 2^3=\dfrac{32}{3}\pi,\\ \\V_{cylinder}=2\pi \cdot 2^3=16\pi.$

3. When r=3,

$V_{sphere}=\dfrac{4}{3}\pi\cdot 3^3=36\pi,\\ \\V_{cylinder}=2\pi \cdot 3^3=54\pi.$

4. When r=4,

$V_{sphere}=\dfrac{4}{3}\pi\cdot 4^3=\dfrac{256}{3}\pi,\\ \\V_{cylinder}=2\pi \cdot 4^3=128\pi.$

5. When r=5,

$V_{sphere}=\dfrac{4}{3}\pi\cdot 5^3=\dfrac{500}{3}\pi,\\ \\V_{cylinder}=2\pi \cdot 5^3=250\pi.$

Note that for all r,

$\dfrac{V_{sphere}}{V_{cylinder}}=\dfrac{\frac{4}{3}\pi r^3}{2\pi r^3}=\dfrac{2}{3}.$

8 0

3 years ago

Read 2 more answers

Find the equation of the line that has slope 2/3 and which passes through (-1,-4)

Masja [62]

The answer is y=2/3x+5

8 0

3 years ago

There are 10 marbles in a bag: 1 blue, 4 yellow, 3 red, and 2 white. If you choose a marble at random, which is the probability

Eduardwww [97]

Answer:

8/10

Step-by-step explanation: there are two white marbles and you want to know the probability of you not getting white so just subtract the white from the rest and put the rest of the marbles over ten

6 0

3 years ago

What is the surface area of this right rectangular prism? Enter your answer in the box.

Anon25 [30]

Hello!

We must use a certain formula to calculate the surface area of a rectangular prism. The formula is:

A = 2 (wl + hl + hw)

Substitute:

A = 2(4 × 5) + (2 × 5) + (2 × 4)

A = 2(20 + 10 + 8)

A = 76 cm squared

ANSWER:

The surface area of the right rectangular prism is 76 centimetres squared.

3 0

3 years ago

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