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shtirl [24]
3 years ago
11

May you please help me out please :(

Mathematics
1 answer:
Effectus [21]3 years ago
3 0
The answer is D) All the steps and the answer are correct. :)

You can just solve using the steps to see if they are right. For example, is -1x17=-17? Yes.
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The heights of women aged 20 to 29 are approximately Normal with mean 61 inches and standard deviation 2.5 inches. Men the same
Tcecarenko [31]

The heights of women aged 20 to 29 are approximately Normal with mean 64 inches and standard deviation 2.7 inches. Men the same age have mean height 69.3 inches with standard deviation 2.8 inches.

5 0
3 years ago
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If the area of a parallelogram is<br> 120 ft.^2 and the base is 15 ft.,<br> what is the height?
Lostsunrise [7]

Answer:

8 ft

Step-by-step explanation:

The area of a paralellagram is b*h. Since we know the base, 15, we can plug this into an equation.

15(h) = 120.

Divide by 15 on both sides to get you 8.

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3 years ago
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One of the tallest buildings in a country is topped by a high antenna. The angle of elevation from the position of a surveyor on
irina1246 [14]

Answer:

a. distance of the surveyor to the base of the building = 2051.90 ft

b. height of the building = 1384 ft

c. Angle of elevation from the surveyor to the top of the antenna = 38.31°

d. Height of antenna  =  237.08 ft

Step-by-step explanation:

​The picture above is a illustration of the described event.

a = the height of the flag

b = the height of the building

c = distance of the surveyor from the base of the building

the angle of elevation from the position of the surveyor on the ground to the top of the building = 34°  

distance from her position to the top of the building  = 2475 ft

distance from her position to the top of the flag  = 2615 ft

​(a) How far away from the base of the building is the surveyor​ located?​

using the SOHCAHTOA principle

cos 34° = c/2475

c =  0.8290375726  × 2475

c = 2051.8679921

c = 2051.90 ft

(b) How tall is the​ building

The height of the building = b

sin 34° = opposite /hypotenuse

0.5591929035 = b/2475

b =  0.5591929035  × 2475

b =  1384.0024361

b =  1384.00 ft

​(c) What is the angle of elevation from the surveyor to the top of the​ antenna?

let the angle = ∅

cos ∅ = adjacent/hypotenuse

cos ∅ = 2051.90/2615

cos ∅ =  0.784665392

∅ = cos-1  0.784665392

∅ =   38.310258303

∅ =  38.31°

​(d) How tall is the​ antenna?

height of the antenna = a

sin 38.31° = opposite/hypotenuse

sin 38.31° = (a + b)/2615

sin 38.31° × 2615 = (a + b)

(a + b) =  0.6199159917  × 2615

(a + b) =  1621.0803182

(a + b) = 1621. 08 ft

Height of antenna = 1621. 08 - 1384.00  =  237.08031822 ft

Height of antenna  =  237.08 ft

8 0
3 years ago
You charge $5.50 an hour for babysitting. At the end of the week you earn $82.50. How many hours did you work this week?
lana [24]

Answer:

15 hours.

Step-by-step explanation:

3 0
3 years ago
48 divided by 9853 has what remainder
NeX [460]
Answer- 205 r13

Work: 9853/48, 205 13/48
5 0
4 years ago
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