3 years ago

`x^{2}+15x\ +\ 56=0`

Mathematics

1 answer:

LuckyWell [14K]3 years ago

7 0

Answer:

x=-7, -8 i think sorry

Step-by-step explanation:

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3 years ago

EMERGENCY! PLEASE HELP!!!!!!!! The volume of the cylinder is 2541π mm^3. The volume of the cone is what?

Minchanka [31]

Answer:

847π mm³

Step-by-step explanation:

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3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%7Ba%7D%5E%7B%20-%201%7D%20%2B%20%20%7Bb%7D%5E%7B%20-%201%7D%20%20%7D%7B%20%7B

Olegator [25]

Answer:

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Step-by-step explanation:

There is nothing to solve. Perhaps you want to simplify the expression.

$\dfrac{a^{-1}+b^{-1}}{b^{-1}}=\dfrac{b(a^{-1}+b^{-1})}{b(b^{-1})}=\dfrac{b}{a}+1=\boxed{\dfrac{a+b}{a}}$

_____

The applicable rules of exponents are ...

b^-1 = 1/b

(a^b)(a^c) = a^(b+c)

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