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3 years ago

Which expression is equivalent to 5−4/4−3 ? −64 −1/64 1/64 64

Mathematics

2 answers:

Mariulka [41]3 years ago

7 0

Solution:

The expression is

$\frac{5-4}{4^{-3}}=1 \times 4^3= 4 \times 4 \times 4=64$ →→→Used law of indices here , $\frac{1}{a^{-m}}=a^m and\\\\ a^m = a \times a \times a (\text{m times})$

Option D: 64 is right choice.

Anton [14]3 years ago

5 0

Its 64 hope you get a good grade

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About 543 out of every 1,000 people in United States owned a cell phone in 2003.In japan,the are was 68 for every 100 people.How

Softa [21]

Answer:

The greater percent of cell phone ownership in Japan than the U.S was <u>13.7%</u>.

Step-by-step explanation:

Given:

About 543 out of every 1,000 people in United States owned a cell phone in 2003.

In japan,the are was 68 for every 100 people.

Now, to find the greater percent of cell phone ownership in Japan than the U.S.

So, to get the percent of people owned cell phone in United States:

$\frac{543}{1000}\times 100$

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Now, to get the percent of people owned cell phone in Japan:

$\frac{68}{100} \times 100\\\\=0.68\times 100\\\\=68\%.$

So, to get the percent greater of cell phone ownership in Japan than the U.S we subtract the percent of people owned cell phone in United States from the percent of people owned cell phone in Japan:

$68\%-54.3\%\\\\=13.7\%.$

Therefore, the greater percent of cell phone ownership in Japan than the U.S was 13.7%.

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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