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ser-zykov [4K]
4 years ago
7

Write (-32)^-2 as an expression without a negative exponent please

Mathematics
1 answer:
Yuliya22 [10]4 years ago
5 0

Step-by-step explanation:

Hey there!

(-32)^-2 <em>Into</em><em> </em><em>posi</em><em>tive</em><em> </em><em>expo</em><em>nent</em><em>s</em><em>.</em>

<em>We</em><em> </em><em>generally</em><em> </em><em>law</em><em> </em><em>of</em><em> </em><em>nega</em><em>tive</em><em> </em><em>index</em><em>.</em>

<em><u>Exa</u></em><em><u>mple</u></em><em><u>;</u></em>

<em><u>{x}^{ - y}  =  \frac{1}{ {x}^{y} }</u></em>

<em><u>So</u></em><em><u>,</u></em><em> </em><em>let's </em><em>make</em><em> </em><em>it</em><em> </em><em>same</em><em> </em><em>as</em><em> </em><em>this</em><em>:</em>

<em>{ - 32}^{ - 2}  =  \frac{1}{  { - 32}^{ 2} }</em>

<em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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Answer: B and F

Step-by-step explanation:

Since, In the first case original amount = 45

So, the increasing percentage when the original amount increases to 75,

=  \frac{75-45}{45} \times 100 = \frac{30}{45} \times 100= \frac{200}{3} %

In second case original amount = 75

So the decreasing percentage when the original amount decreases to 45,

=    \frac{75-45}{75} \times 100 = \frac{30}{75} \times 100= \frac{40}{1} %

Thus, We found that the ratio of the percent increase is not the same as the percent decrease ( because,   \frac{200}{3}\neq \frac{40}{1}

Also, The original amount of the present increase is different from the original amount for the persons decrease. ( Because, 75\neq 45

Therefore, Option B and F is correct only.



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