3 years ago

What is the height of a cylinder if the volume is 72 cm and the radius is 3 cm?

Mathematics

1 answer:

tresset_1 [31]3 years ago

7 0

Answer:

The height of the cylinder is h≈2.55cm

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Charra [1.4K]

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Step-by-step explanation:

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3 years ago

Given f(x)=3x^2+5 and g(x)=x−2 . What is (fg)(x) ? 3x^2−x+7 3x^3−6x2+5x−10 −3x^2+x−7 3x^3−10

wolverine [178]

For this case we have that by definition:

$(fg) (x) = f (x) * g (x)$

So:

$(fg) (x) = (3x ^ 2 + 5) (x-2)$

We apply distributive property that states that:

$(a + b) (c + d) = ac + ad + bc + bd$

In addition, we take into account that:

$+ * - = -$

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Answer:

$3x ^ 3-6x ^ 2 + 5x-10$

Option B

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Use PEMDAS for order of operations, it will save your life
Parenthesis Exponents Multiply Divide Add Subtract
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