3 years ago

Please help if you can

Mathematics

1 answer:

schepotkina [342]3 years ago

4 0

Step-by-step explanation:

sqrt of 81 is 9 so rational

Sqrt of 89 is irrational

Sqrt of 121 is 11 so rational

Sqrt of 131 is irrational.

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The height of a cylinder is 8 centimeters. The circumference of the base of the cylinder is 20π centimeters. Which measurement i

trapecia [35]

Answer: $2514.28\ cm^3$

Step-by-step explanation:

Given

The height of the cylinder is $h=8\ cm$

Circumference of the base is $20\pi \ cm$

suppose 'r' is the radius of the cylinder

$\Rightarrow 2\pi r=20\pi\\\Rightarrow r=10\ cm$

The volume of a cylinder is $V=\pi r^2h$

$\Rightarrow V=\pi \times 10^2\times 8=2514.28\ cm^3$

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2 years ago

Grapes coast 1.99 per pound. write an expression for the coast of grapes

ELEN [110]

1.99p = x

x = total cost

1.99p = 1.99 per pound of grapes.

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3 years ago

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uysha [10]

Answer:

Step-by-step explanation:

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3 years ago

Please help me on this .. Thanks

Fantom [35]

The correct answer among all is D. I'm in K12 8th grade by the way so nice to meet you :)

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You want to build a fence around a square garden that covers 506.25 square feet. How many feet of fence will you need to complet

Stolb23 [73]

<span>The area of a square is (length of side)^2 , the perimeter of a square is 4*(length of side)

Then your answer is 4 * sq rt (506.25 f`t^2) = 4 * 22.5 ft =

= 90 ft of fence</span><span>Source(s):</span>

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3 years ago

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