3 years ago

Help i’m between to answers.

Mathematics

1 answer:

bonufazy [111]3 years ago

6 0

Answer:

hope it's helpful

and mark me as brainlist

and drop some thanks

Step-by-step explanation:

option c is the answer

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-25^-1/2 with explanation please

slavikrds [6]

Answer:

The simplified value of $-25^{-\frac{1}{2}}$ is $-\frac{1}{5}$ .

Step-by-step explanation:

As the given expression is

$-25^{-\frac{1}{2}}$

Lets simplify this expression step by step

$-25^{-\frac{1}{2}}....[A]$

$\mathrm{Apply\:exponent\:rule}:\quad \:a^{-b}=\frac{1}{a^b}$

$25^{-\frac{1}{2}}=\frac{1}{25^{\frac{1}{2}}}$

So, lets plug $25^{-\frac{1}{2}}=\frac{1}{25^{\frac{1}{2}}}$ in equation [A] i.e. $-25^{-\frac{1}{2}}....[A]$

$-25^{-\frac{1}{2}}....[A]$

$=-\frac{1}{25^{\frac{1}{2}}}$ ∵ $25^{-\frac{1}{2}}=\frac{1}{25^{\frac{1}{2}}}$

$=-\frac{1}{5}$ ∵ $25^{\frac{1}{2}}=5$

Therefore, the simplified value of $-25^{-\frac{1}{2}}$ is $-\frac{1}{5}$ .

Keywords: simplification, exponent rule

Learn more about expression simplification from brainly.com/question/13848834

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3 years ago

1. Determine if each pair of rates are equivalent (Equal) Explain your reasoning: 12 posters for 36 students and 21 posters for

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<em>Answer:264 students</em>

Step-by-step explanation:You have to add to get you answer.I'll show you how I got 264:

12+12=24

24+36=60

60+36=96

96+21=117

117+21=138

138+63=201

201+63=264

Your answer is: 264 students

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Answer:

Step-by-step explanation:

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