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3 years ago

How do you simplify 8 to the -2 power

1 answer:

3 0

IF you have a scientific calculator that would REALLY be handy here but if you don't then um.... I have no clue what to tell you. Sorry!!

The answer to 8 raised to the -2 power is .015625
Most likely you should round it out so it would be .016

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Help me with math please grade 5

Salsk061 [2.6K]

Answer:

15/7 is the answers for the question

Step-by-step explanation:

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2 years ago

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A bike tire just ran over a nail, and it is losing pressure at a rate of 10% every minute. The tire pressure is currently 1,060

kompoz [17]

Answer:

636 kilopascals

Step-by-step explanation:

4 x 10 is 40

It will lose 40% after 4 minutes

Multiply 1060 by 0.60

The answer is 636 kilopascals

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3 years ago

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The radii of Earth and Pluto are 6,371 kilometers and 1,161 kilometers, respectively. Approximately how many spheres the size of

rosijanka [135]

$\bf \qquad \qquad \textit{ratio relations}
\\\\
\begin{array}{ccccllll}
&Sides&Area&Volume\\
&-----&-----&-----\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3}
\end{array} \\\\
-----------------------------\\\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}\qquad \cfrac{s}{s}=\cfrac{\sqrt{s^2}}{\sqrt{s^2}}=\cfrac{\sqrt[3]{s^3}}{\sqrt[3]{s^3}}\\\\
-------------------------------\\\\$

$\bf \cfrac{\textit{earth's volume}}{\textit{pluto's volume}}\qquad \cfrac{s^3}{s^3}\implies \cfrac{6371^3}{1161^3}\implies \cfrac{258596602811}{1564936281}\approx 165.24417$

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4 years ago

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The sum of two numbers is 87. The difference of the same to numbers is negative 111. Find the numbers.

anyanavicka [17]

Answer:

99 and - 12

Step-by-step explanation:

let x and y be the 2 numbers, then

x + y = 87 → (1)

x - y = - 111 → (2)

Adding the 2 equations term by term eliminates the y- term

2x = - 24 ( divide both sides by 2 )

x = - 12

Substitute x = - 12 into (1)

- 12 + y = 87 ( add 12 to both sides )

y = 99

The 2 numbers are 99 and - 12

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3 years ago

Helps if look at pic

Ann [662]

The answer is 90 (B)
pls make me brainliest

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3 years ago

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