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GarryVolchara [31]
3 years ago
9

How to get rid of a negative exponent in a fraction?

Mathematics
1 answer:
Sophie [7]3 years ago
6 0
So let’s say we have (3/2)^-2. We know that any negative exponent means we have to put that number under 1, with a positive exponent:

1 / (3/2)^2

There’s also another thing we can do. There’s a rule in maths that says we can get the positive exponent if we just flip the fraction, so we get:

(3/2)^-2

Flip it:

(2/3)^2

It would be the same as 1 / (3/2)^2, since that would be 1/1 / 9/4, resulting in 4/9 (multiply inner part with inner part (9*1) and that goes under, and outer with outer (4*1) and that goes over). (2/3)^2 is also 4/9, so both ways are valid.
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Find the integral of this problem
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3 years ago
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Step-by-step explanation:   emma's amount be X .  justin has $7.50+x because he has $7.50 more than emma.Since emma has 7.50+x-$12.to get everyones amount add what they have together which is=$7.50+x+$7.50+x-12 which in total is $63.00.after the calculations you get x=30.now distribute the x equally. so justin has $7.50+30=37.50.we also distribute it with emma's which is 7.50+30-12=25.5.

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to be sure add 37.50+25.50=$63


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