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Whitepunk [10]
2 years ago
10

Simplify the following expression to remove negative exponents.

Mathematics
1 answer:
Talja [164]2 years ago
4 0

When there is a negative exponent, you switch the side of the fraction it's on. If the negative exponent is the numerator or a whole number, like x^{-9} or \frac{x^{-9} }{3}, you move the exponent and its coefficient to the bottom so that it's part of the denominator, and remove the negative.

x^{-9} = \frac{1}{x^{9} }

\frac{x^{-9} }{3}= \frac{1}{3x^{9} }

If the exponent is on the bottom, or part of the denominator, like \frac{1}{x^{-4} }, we move it to the top and take out the negative.

\frac{1}{x^{-4} } = x^{4}

In our case, the expression is x^{-7}.

So, using our new knowledge of negative exponents, we can take the exponent and put it as a denominator.

x^{-7} = \frac{1}{x^7}

The answer would be the last answer.

hope this helps!

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The answer would be the first option :
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Kay [80]

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Using the same kind of calculation, we can see
that the world record times for other distances
correspond to:

200 meters                  23.31 mph
400 meters                   20.72 mph
800 meters                   17.73 mph
1000 meters                 16.95 mph
1500 meters                 16.29 mph
1 mile (1,609 meters)    16.13 mph
2,000 meters                 15.71 mph
10,000 meters               14.18 mph
30,000 meters               12.89 mph
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Except for that one figure at the end, for the marathon,
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Michael: (a)(b)(c)
irinina [24]

Answer:

Ladonna: a + c + b

Step-by-step explanation:

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x+y=y+x

-Since the alphabet follows the order a,b, c....

Only Ladonna rearranged to change this order to show the commutative property.

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Answer:

C. P=\frac{12x}{5} + 4

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3 years ago
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