2 years ago

2(3 x5-8)-4x2 (8-6+2)

Mathematics

1 answer:

4vir4ik [10]2 years ago

4 0

Answer:

-18

Step-by-step explanation:

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2 years ago

Please help! <br> Simplify. Your answer should contain only positive exponents.

maxonik [38]

Answer:

$\frac{1}{4k^3}$

Step-by-step explanation:

It's already in a form that only ha positive exponents. Just to state it though you could rewrite it as $k*(4k^{4})^{-1}$ or $k*4^{-1}*k^{-4}$ The question asks for positive exponents though so yu don't need to do that.

You also need to know $\frac{x^a}{x^b}=x^{a-b}$ so in this case $\frac{k}{k^4}=\frac{k^1}{k^4} =k^{1-4}=k^{-3}=\frac{1}{k^3}$

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2 years ago

Which value of h make the equation true?<br> 2.3 + h = 7.8

Nat2105 [25]

Answer:

h = 5.5

Step-by-step explanation:

2.3 + h = 7.8

-2.3 -2.3

h = 5. 5

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2 years ago

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Step-by-step explanation:

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