1. What is the surface area of the pyramid below 6 , 5.2 ,8.2

Mathematics

1 answer:

oksano4ka [1.4K]3 years ago

4 0

128.22? I’m not sure if it’s right because you did not specify the base length, width or height.

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Order these numbers in ascending order. -11/3, 90%, 89/4, 2

Delicious77 [7]

Answer:

$- \frac{11}{3} \: \: » \: \: 90\% \: » \: \: 2 \: \: » \: \: \frac{89}{4}$

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3 years ago

Which number is between 0.6 7/9

irakobra [83]

First we make the fractions homonym ( they must have the same denomitator)

0.6 = 6 / 10 7/9

6/10 = 6 * 9 / 10 * 9 = 54 / 90 7/9 = 7 * 10 / 9 * 10 = 70 / 90

The numbers which are between these numbers are ;

55 / 90 , 56 / 90 , 57 / 90 , 58 / 90 , 59 / 90, 60 / 90 , 61 / 90 , 62 / 90 , 63 / 90 , 64 / 90, 67 / 90 , 68 / 90 , 69 / 90

62 / 90 = 62 / 2 / 90 /2 = 31 / 45

So the right answer is B.

Hope that helps :)

8 0

3 years ago

A person is standing 50 ft from a statue. The person looks up at an angle of elevation of 8 degrees when staring at the top of t

borishaifa [10]

The height of the statue is 19.5 feet.

Why?

We can solve the problem using trigonometric formulas. In this case, we are going to use the trigonometric formula of the tangent.

We know that the person is standing 50ft from the statue, so, it will be the base of the two triangles formed by both angles (elevation and depression)

Using the trignometric formula, we have:

First triangle:

$tg(\alpha )=\frac{h_{1}}{base} \\\\tg(8\°)=\frac{h_{1}}{50ft}\\\\0.14*50ft=h_1\\\\h_1=7ft$

Second triangle:

$tg(\alpha )=\frac{h_{2}}{base} \\\\tg(14\°)=\frac{h_{1}}{50ft}\\\\0.25*50ft=h_1\\\\h_1=12.5ft$

Now, the total height of the statue will be:

$TotalHeight=h_1+h_2=7ft+12.5ft\\\\TotalHeight=19.5ft$

Have a nice day!

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3 years ago

Which geographic feature was common to the development of civilizations in ancient Egypt, China, India, and Mesopotamia?

storchak [24]

The answer is probably D

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4 years ago

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Delvig [45]

Divide the current with the previous
18/15 = 1.2

move the decimal point to the right two places to get the percentage

120% is your answer

hope this helps

5 0

3 years ago

Read 2 more answers