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Rama09 [41]
2 years ago
12

The angle of elevation to the top of a Building in New York is found to be 2 degrees from the ground at a distance of 2 miles fr

om the base of the building. Using this information, find the height of the building. Round to the tenths. Hint: 1 mile = 5280 feet

Mathematics
1 answer:
natulia [17]2 years ago
3 0

Check the picture below.

make sure your calculator is in Degree mode.

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What is the principal square root of -4
devlian [24]

Answer:

The principal square root of -4 is 2i.

Step-by-step explanation:

\sqrt{-4} = 2i

We have the following steps to get the answer:

Applying radical rule \sqrt{-a} =\sqrt{-1} \sqrt{a}

We get \sqrt{-4} =\sqrt{-1} \sqrt{4}

As per imaginary rule we know that \sqrt{-1}=i

= \sqrt{4} i

Now \sqrt{4} =2

Hence, the answer is 2i.

6 0
3 years ago
Graph -5x-8y=40
Triss [41]

Answer:

Please, see the attached file.

Thanks.

Step-by-step explanation:

-5x-8y=40

This is a linear equation, and its graph is a right line, we only need two points, because by two points only goes trough only a right line:

1) For x=0→ -5(0)-8y=40

0-8y=40

-8y=40

Dividing both sides of the equation by -8:

-8y/(-8)=40/(-8)

y=-5

Point=(x,y)→Point=(0,-5)


2) For y=0→ -5x-8(0)=40

-5x-0=40

-5x=40

Dividing both sides of the equation by -5:

-5x/(-5)=40/(-5)

x=-8

Point=(x,y)→Point=(-8,0)


With these two points (0,-5) and (-8,0) we can draw the right line.



8 0
3 years ago
58 is what percent of 40
Oksana_A [137]

58÷40×100 which will give you 145 as the answer.

4 0
3 years ago
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What percent of 50 is 5
lara [203]

Answer:

10%

Step-by-step explanation:

5 0
3 years ago
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which statement is true of the function f(x) = -³√x ? check all that apply. a). the function is always increasing. b). the funct
Ghella [55]
X=?

Well this is very complicated my child.

-SC
8 0
2 years ago
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