3 years ago

A room is 20 feet long by 10 feet wide. A map says that

Mathematics

1 answer:

aev [14]3 years ago

7 0

Answer:

4 inches long and 2 inches wide.

Step-by-step explanation:

20/5 = 4 10/5=2

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8 quarters or 2 1 dollar bills and why

anygoal [31]

They both have the same value.

Step-by-step explanation:

4 quarters= 1 dollar

So, 8 quarters would be 2 dollars.

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3 years ago

Mary went to the park with Amy at 2:30 pm. They played for 1 hour 30 min. At what time did the finish playing? Give your answer

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4:00 pm

Step-by-step explanation:

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3 years ago

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I need help! If this correct 22?

Gala2k [10]

Answer: Yes its correct

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1 year ago

Which part of the graph will the directrix pass through?

OLEGan [10]

Answer:

Step-by-step explanation:

I just did it

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3 years ago

Someone please HELP!?

jeka94

A negative exponent just means that the base is on the wrong side of the fraction line, so you need to flip the base to the other side.

For example

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

or

$( \frac{2}{5} )^{-4}=( \frac{5}{2} )^4$

***************************************
$(8r^{-5})^{-3}$

$(8* \frac{1}{r^5} )^{-3} \\\\( \frac{8}{r^5} )^{-3}
 \\ \\ ( \frac{r^5}{8} )^3
\\\\ \mathrm{Apply\:exponent\:rule}:\quad *\left(\frac{a}{b}\right)^c=\frac{a^c}{b^c} \ \ \ \ \ \ \ \ \ \ \ \ *(a^b)^c=a^{bc}
 \\\\( \frac{r^{15}}{8^3} )
\\\\( \frac{r^{15}}{512} )$

The answer is "D"

7 0

3 years ago