3 years ago

Find the volume of a cone with a diameter of 5.5 km

1 answer:

4 0

Answer:

$volume = \frac{1}{3} \pi {r}^{2} h \\ = \frac{1}{3} \times \frac{22}{7} \times {( \frac{5.5}{2}) }^{2} \times 11.2 \\ = 88.7 \: {km}^{3}$

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The area of a rectangle is 30 square root 3750 square inches, and the length is 3 square root 250 inches what is the width of th

Ann [662]

Answer:

$width=10\sqrt{15}\ in$

Step-by-step explanation:

-A rectangle's area is given by:

$A=lw\\\\l=length\\w=width$

Given A= $30\sqrt{3750}$ and $l=3\sqrt{250}$ , we substitute in the formula to solve for the width as follows:

$A=lw\\\\30\sqrt{3750}=3\sqrt{250}\times w\\\\w=\frac{30\sqrt{3750}}{3\sqrt{250}}\\\\w=10\frac{\sqrt{3750}}{\sqrt{250}}\\\\=10\times \sqrt{\frac{3750}{250}}\\\\=10\sqrt{15}\ in$

Hence , the rectangle's width is $10\sqrt{15}\ in$

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3 years ago

3x+6=15 solve for x x= ?

mylen [45]

Answer: x=3

Step-by-step explanation: Subtract 6 from both sides, Simplify

15−6 to 9, and then divide both sides by three.

3x=15−6

3x=9

x=9/3

x=3

Hope this helps, have a BLESSED day! ☺️

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3 years ago

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3 years ago

1. What is the value of n in -57 - n = -144? A-201 B-87 C 87 D 201

ss7ja [257]

It’s 24.20 I took this quiz

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What's 30 inches decreased by 30%

Elanso [62]

Answer:

Step-by-step explanation:

First, we would find 30% of 30, which would be 9. Then we would subtract 9 from 30 because we are decreasing it by 30%. That means the answer is 30-9, which is 21.

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4 years ago