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zheka24 [161]
3 years ago
9

What do you do if you have a variable with a negative exponent?

Mathematics
1 answer:
Scrat [10]3 years ago
3 0
If it is not contained in a fraction write it as one over the variable with a positive exponent
ex. 2^-1 = 1/2. 3^-2 = 1/3² = 1/9

if it is in the denominator of a fraction move it to the numerator and make it positive
ex. 1/4^-1 = 4. 2/3^-2 = 2*3² = 18

if it is in the numerator...you get the picture
ex 6^-2/3 = 1/3*6² = 1/108

hope that helps
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75 percent of 88 is the same as 60 percent of what number?
tangare [24]
First we need to know 75% of 88.
To find this number we multiply 88 by 0.75. 
Hence, 0.75 * 88 = 66

Therefore, 60% of a certain number equals 66.
Then 1% of that certain number equals 66 / 60
Finally, to find our number (which equals 100%) we multiply by 100.
So 66 / 60 * 100 = 110.

Hence, 75 percent of 88 is the same as 60 percent of 110.
5 0
3 years ago
​(b) If the population doubled in size over 30 months and the current population is 20,000​, what will the population be 4 years
Evgen [1.6K]

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Step-by-step explanation:

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What is the value of x?<br> edge2020
mezya [45]

Answer:

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Step-by-step explanation:

next time you want to figure this out, here's how

- they are supplementary angles, so you just subtract 45⁰ from 180⁰

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Item cost 3.60 a bottle and there are 6 in each case how much would 4 cases cost
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So first multiply the number of bottles which is 6 with the cases which is 4.

6 x 4 = 24,so there's 24 bottles.Now multiply the price of the bottles time 24.

24 x 3.60 = 86.4.So the person that bought that will have to pay 86.4.Man those things are expensive.

Hope this helps :D
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