4 years ago

Please help please help me

Mathematics

1 answer:

Gre4nikov [31]4 years ago

7 0

Answer:

ITS AAAAA

3546

56789

546

Step-by-step explanation:

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a)b 256What are the values of a and b in the equation(4x[4x2- ?○ a-2, b-4○ a=-2, b-4○ a-2, b=-4○ a-2, b=-422aaaa0000C日

klasskru [66]

Hi.... your answer is below:

$\left( 4.x^{a} \right)^{b}=\dfrac{256}{x^{8}}\rightarrow 4^{b}x^{ab}=256x^{-8}\rightarrow 2^{2b}.\,x^{ab}=2^{8}.\,x^{-8}\rightarrow\\ \text{by comparison}\\ 2^{2b}=2^{8}\rightarrow 2b=8\rightarrow \boxed{b=4}\\ x^{ab}=x^{-8}\rightarrow x^{4a}=x^{-8}\rightarrow 4a=-8\rightarrow \boxed{a=-2}$

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4 years ago

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Answer:

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Step-by-step explanation:

Use the equation and plug in each answer choice, and see if it matches.

The first number in the (,) is the x and the second is the y.. so

(3, 8)

3 = x

8 = y

example...

Option B. does not work because.

-2 x 0.5 = -1

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Step-by-step explanation:

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