3 years ago

Hi, can someone help me on a p e x? learning

Mathematics

1 answer:

Pie3 years ago

4 0

Sure whats the problem?

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The sum of the deviations about the mean always equals _________.

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3 years ago

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Katyanochek1 [597]

30,000
the way you can solve this is by removing all numbers in front of the selected number(in this case, 2 should be removed) then change all numbers behind to 0.

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3 years ago

What percent of 99.2 is 91

olya-2409 [2.1K]

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3 years ago

A giraffe can run 40 meters per second what is its speed in miles per hour

lora16 [44]

Bearing in mind that, there are

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60 minutes in 1 hr,
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$\bf \cfrac{40\underline{m}}{\underline{s}}\cdot \cfrac{60\underline{s}}{\underline{min}}\cdot \cfrac{60\underline{min}}{hr}\cdot \cfrac{\underline{km}}{1000\underline{m}}\cdot \cfrac{mi}{1.609\underline{km}}\implies \cfrac{40\cdot 60\cdot 60\cdot mi}{hr\cdot 1000\cdot 1.609}
\\\\\\
\cfrac{144000mi}{1609hr}\approx 89.496581\frac{mi}{hr}$

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3 years ago

Cooper is taking a multiple choice test with a total of 80 points available. Each question is worth exactly 4 points. What would

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Answer:

80-4(2)=72; 80-4(x) if he got x wrong.

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3 years ago