2 years ago

Divide 5 by 4. is your answer a rational number ? explain

Mathematics

1 answer:

drek231 [11]2 years ago

7 0

The answer is 1.25. yes it is rational because you can write it as a fraction

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Grain is falling from a chute onto the ground, forming a conical pile whose diameter is always three times its height. how high

bezimeni [28]

Given that grain is falling from a chute onto the ground, forming a conical pile whose diameter is always three times its height.

So if D is the diameter and h is the height of the conical pile then we can write:

D=3h

We know that diameter = 2r, where r is the radius

2r=3h

$r=\frac{3h}{2}$

Volume of conical pile is given by formula

$V=\frac{1}{3}\pi r^2h$

Given that volume is 1110 cubic feet.

Now plug the values of Volume and r into equation of volume

$1110=\frac{1}{3}\pi (\frac{3h}{2})^2h$

$1110=\frac{1}{3}\pi\cdot\frac{9h^2}{4}\cdot h$

$1110=\pi\cdot\frac{3h^3}{4}$

$1110\cdot\frac{4}{3\pi}=h^3$

$471.098631552=h^3$

take cube root of both sides

7.78103342467=h

Hence height is approx 7.78 feet.

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2 years ago

Ajutatima la ecuatia<br> q*435=810

Alborosie

435 divided by 810 is 1.862068966. not rounded.

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2 years ago

PLEASE HELP:

wlad13 [49]

76/2=38 so half her mothers age is 38. And since Moira is 3 less than the half of her mothers age, Moira is: 38-3=35

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3 years ago

Evaluate the expression.<br> -6+3(-3+7).

lesantik [10]

Answer:

answer for this question is 6

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42.54 degrees is the same as 42 degrees______ '42"

pav-90 [236]

The answer is 24" hope this helps.

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2 years ago