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3 years ago

Is it possible to have a playground area made from 70 yards of fencing with an area of 324 square yards? Explain with

Mathematics

1 answer:

cricket20 [7]3 years ago

7 0

Answer:

Yes: The answer would be 113.04 cubic feet

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Use the definition of the derivative to differentiate v=4/2 pie r^3

nata0808 [166]

I suspect 4/2 should actually be 4/3, since 4/2 = 2, while 4/3 would make V the volume of a sphere with radius r. But I'll stick with what's given:

$\displaystyle \frac{dV}{dr} = \lim_{h\to0} \frac{2\pi(r+h)^3-2\pi r^3}{h}$

$\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} \frac{(r^3+3r^2h+3rh^2+h^3)- r^3}{h}$

$\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} \frac{3r^2h+3rh^2+h^3}{h}$

$\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} (3r^2+3rh+h^2)$

$\displaystyle \frac{dV}{dr} = 2\pi \cdot 3r^2 = \boxed{6\pi r^2}$

In Mathematica, you can check this result via

D[4/2*Pi*r^3, r]

3 0

3 years ago

Find the area of the polygon.

svetlana [45]

This is a trapezoid and the trapezoid formula is b1 plus b2/ 2 times height.

17 plus 5 is 22. Divided by 2 is 11.

Now, we have to multiply 11 by the height : 5.

11 times 5 is 55 and that is your area. 55 units squared.

7 0

3 years ago

Please answer fast however answer i will make brainilest

Marizza181 [45]

Answer:

Step-by-step explanation:

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3 years ago

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What is 4% of 50% of 5

icang [17]

Answer:

4% of 50% of 5 is 0.1

Use a calculator.

(Answer was deleted for "incorrect" as it was correct as that's what I got as an answer.)

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3 years ago

In a certain Algebra 2 class of 29 students, 18 of them play basketball and 7 of them play baseball. There are 2 students who pl

Natasha2012 [34]

Answer:

24/.29

Step-by-step explanation:

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3 years ago

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