3 years ago

This figure is a tetrahedron. What is the area of its base?

Mathematics

1 answer:

wolverine [178]3 years ago

7 0

The area of its base is 62.4 square units.

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D. 89°

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The lines on a 2-cup liquid measuring cup divide each cup into eighths If you measure 1 3/4 cups of water between which two quan

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The line between 1 5/8 and 1 7/8 is exactly 1 3/4.

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1 3/4 = 1 6/8

Since the lines are every 1/8 of a cup, there are a total of 16 lines indicating 1/8 of a cup for a total of two full cups.

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3 years ago

A survey finds that 55 people out of 170 favor increasing property taxes to help pay for a new library. If this data is used to

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Answer: B. 0.036

Step-by-step explanation:

Formula for standard error :

$SE=\sqrt{\dfrac{p(1-p)}{n}}$

, where p = Population proportion and n= sample size.

Let p be the population proportion of the people who favor new taxes.

As per given , we have

n= 170

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Substitute these values in the formula, we get

$SE=\sqrt{\dfrac{0.324(1-0.324)}{170}}\\\\=\sqrt{0.00129}\\\\=0.0359165699921\approx0.036$

Hence, the standard error of the estimate is 0.036.

∴ The correct answer is OPTION B. 0.036

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4 years ago

What is the coefficient of 8x

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' 8 ' is the numerical coefficient.

' x ' is the literal coefficient.

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