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3 years ago

Sorry for the bad quality!!! Please help me out!!

Mathematics

1 answer:

Greeley [361]3 years ago

5 0

n has a negative exponent, so you need to rewrite the expression using the negative exponent rule b^-n = 1/b^n

(m^8 1/n^4)^1/4

Now make m^8 a fraction buy giving it a denominator of 1:

(m^8 / 1 1/n^4)^1/4

Multiply the fractions together to get m^8/n^4

Now divide the exponents by 4 to get the final answer of:

m^2/n

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3 years ago

Read 2 more answers

Cable company a increase their rates from 98 a month to 110.92 a month.what is the percents of increase?

Debora [2.8K]

So from 98 to 110.92 is just 12.92 extra bucks.

if we take 98 to be the 100%, what is 12.92 off of it in percentage?

$\bf \begin{array}{ccll}
amount&\%\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
98&100\\
12.92&p
\end{array}\implies \cfrac{98}{12.92}=\cfrac{100}{p}\implies p=\cfrac{12.92\cdot 100}{98}$

6 0

3 years ago

Peg and Larry purchased “no contract” cell phones. Pegs phone costs $25 plus $0.25 per minute. Larry’s phone cost $35 plus $0.20

marissa [1.9K]

Let x be the number of minutes Peg and Larry used their phones. So their costs can be written as:

Cost of Peg's Phone usage = 25 + 0.25x
Cost of Larry's Phone usage = 35 + 0.20x

We are to find when the Peg's phone will be more than Larry's phone. We can set up the inequality as:

25 + 0.25x > 35 + 0.20x

Re-arranging the inequality

0.25x - 0.20x > 35 - 25

0.05x > 10

x > 10/0.05

x > 200

Thus, Pag's phone will cost more if the number of minutes of phone usage is more than 200

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4 years ago