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Anna35 [415]
3 years ago
5

An engineer on the ground is looking at the top of a building. The angle of elevation to the top of the building is 22°. The eng

ineer knows the building is 450 ft tall. What is the distance from the engineer to the base of the building to the nearest whole foot?
1,114 ft

1,201 ft

1,818 ft

990 ft

Mathematics
2 answers:
Kobotan [32]3 years ago
3 0
Let the distance of the engineer from the base of the building be x, then 
tan 22 = 450/x
x = 450/tan 22 = 450/0.4040 = 1,113.79

Therefore, the distance of the engineer from the base of the building to the nearest foot is 1,114 feet.
Ksju [112]3 years ago
3 0

Answer:

Distance, x = 1114 ft

Step-by-step explanation:

It is given that,

The angle of elevation to the top of the building, \theta=22^0

Height of the building, h = 450 ft

We have to find the distance from the engineer to the base of the building i.e. x

In triangle ABC, using trigonometric equations as :

tan(22)=\dfrac{AB}{BC}

tan(22)=\dfrac{450}{x}

x=\dfrac{450}{tan(22)}

x=1113.7\ ft

or

x = 1114 ft

So, the distance from the engineer to the base of the building is option (A) i.e. 1114 ft

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Find x, find jl . any help is deeply appreciated :) !​
Doss [256]

Answer:

6. x = 15

7. JL = 78

Step-by-step explanation:

6. 8x - 23 = ½(10x + 44) (midsegment theorem)

Multiply both sides by 2

2(8x - 23) = 10x + 44

16x - 46 = 10x + 44

Collect like terms

16x - 10x = 46 + 44

6x = 90

Divide both sides by 6

x = 90/6

x = 15

7. MN = 5x - 16

JL = 4x + 34

MN = ½(JL) (midsegment theorem)

5x - 16 = ½(4x + 34) (substitution)

2(5x - 16) = 4x + 34

10x - 32 = 4x + 34

Collect like terms

10x - 4x = 32 + 34

6x = 66

x = 66/6

x = 11

JL = 4x + 34

Plug in the value of x

JL = 4(11) + 34 = 44 + 34

JL = 78

4 0
2 years ago
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Andrew [12]

The two events that created the most tension in the story include:

  • Mrs. White suggests that her husband wishes for four hands for her.
  • Mr. White paid Sergeant-Major Morris a trifle for the paw.

<h3>What is tension?</h3>

It should be noted that tension in literature simply means the sense of something ominous in the literary work. It's a feeling that something is about to happen.

The Monkey's Paw is a horror short story by author W. W. Jacobs. In the story, three wishes are granted to the owner of The Monkey's Paw, but the wishes come with a price for interfering with fate.

It should be noted that Mrs. White suggesting that her husband wish for four hands for her created tension in the story as the readers were eager to know what happened in the story. Also, it should be noted Mr. White paying Sergeant-Major Morris a trifle for the paw created tension.

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8 0
1 year ago
Mika placed $4200 in a savings account which compounds interest continuously at a rate of 2.3%. How much will she have in the ac
OleMash [197]

Mika placed $4200 in a savings account which compounds interest continuously at a rate of 2.3%.

How much will she have in the account after 3 years?

1st year 4200 x 1.023 = 4296.60

2nd year 4296.60 x 1.023 = 4395.4218

3rd year 4395.4218  x 1.023 = 4496.5165

Round to the nearest dollar.

$4497

6 0
3 years ago
What is the value of k ?<br><br> 1/2 k+6=4k-8<br><br>-4<br>-3<br>3<br>4
nasty-shy [4]
The value of k in <span>

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is 4
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−2∣5w−7∣+9=−7<br> What is the 2 answers for this question
loris [4]
The two possible answers are w = 3 and w = -1/5

These answers can be obtained through solving to the absolute value symbols. 

<span>−2∣5w−7∣+9=−7 ---> subtract 9 from both sides
</span><span>−2∣5w−7∣= -16 ---> divide both sides by -2
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Now, because of the absolute value symbols, set the inside equal to 8 and -8 for the two answers. 

5w - 7 = 8
5w = 15
w = 3

AND

5w - 7 = -8
5w = -1
w = -1/5
5 0
3 years ago
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