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3 years ago

Simplify (6x^-2)^2(0.5x)^4... plz show work!

1 answer:

8 0

Simplify (6x^-2)^2(0.5x)^4... plz show work!

 $(6x^{-2})^2(0.5x)^4= \\ \\ (6^2x^{-2*2})(0.5^4x^4)= \\ \\ (36x^{-4})(0.0625x^4)= \\ \\ (36*0.0625)(x^{-4}x^4)= \\ \\ (36*0.0625)(x^{-4+4})= \\ \\ (36*0.0625)(x^{0})= \\ \\ (36*0.0625)= \boxed{2.25} \\ \\$

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Julie had $20.00 in her pocket. She spent $7.40. About what percent of her money does she still have?

posledela

63%

First, we have to take 20.00 - 7.40 which gets us 12.60.

Then, we use the formula where we put the 12.60 on top of a fraction bar, and the 20.00 on bottom.

We do 12.60 x 100 which makes 1260.

Lastly, we divide that by the 20.00 which gets us 63.

So, Julie has 63% of her money left.

I hope this helped!!!

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1 year ago

Whats 1/5 - 1/7 please can you tell me how to work it out thanks

Andrej [43]

Convert the fractions so they both have the same denominator (bottom part of the fraction)

1/5 = 7/35

This is because 5*7=35, so 1*7=7

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Then subtract the top numbers to get the answer:

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Read 2 more answers

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Savatey [412]

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2 years ago

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Step-by-step explanation:

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