Mathematics High School

The height of a building is 72 m. Find the angle of elevation from a point on ground level that is 55 m away from the base of the building

Answers

Answer 1

Answer:

52.6 degrees

Step-by-step explanation:

tan^-1(72/55)

Answer 2

Angle of elevation is equals to 52°7'(approximately).

What is angle of elevation?

" Angle of elevation is the angle between the horizontal plane and line of sight from the point of observation."

Formula used

In a right angled triangle,

tanθ = ( opposite side) / adjacent side)

According to the question,

As shown in diagram

Height of the building (AB) = 72m

Distance between base of the building and point of observation

(BC)= 55m

Angle of elevation = θ

Substitute the value in the formula we have,

tanθ = AB / BC

= 72 / 55

⇒ θ = tan⁻¹ (72 /55)

= tan ⁻¹(1.3091)

= 52° 7' (approximately)

Hence, angle of elevation is equals to 52°7'(approximately).

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The Height Of A Building Is 72 M. Find The Angle Of Elevation From A Point On Ground Level That Is 55

Related Questions

first person who answer correctly gets a brainllest The perimeter of a rectangle is 64 feet. The length of the rectangle is 3 times the width of the rectangle. If w represents the width of the rectangle, the equation that represents the perimeter is 2 (3 w) + 2 w = 64. Which shows the first step that should be taken to verify that the width of the rectangle is 8?

Answers

Answer:

2(3(8))+2(8)=64

Step-by-step explanation:

Here, w represents the width of the rectangle,

∵ length of the rectangle is 3 times the width of the rectangle,

So, length = 3w,

Since, the perimeter of a rectangle, P = 2(length + width)

= 2(w + 3w)

= 2w + 2(3w)

If P = 64 feet,

⇒ 2w +2(3w) = 64

⇒ 2w + 6w = 64

⇒ 8w = 64

⇒ w = 8

Verification :

P = 2(8) + 2((3(8)) = 16 + 48 = 64 feet

Hence, the first step that should be taken to verify that the width of the rectangle is 8 is 2(3(8))+2(8)=64

Note : a solution obtain from an equation is verified by substituting the value in the equation.

Answer:

im sorry this doesn't help but its not d

Step-by-step explanatio

Can somebody helpp ??

Answers

I believe the location of H is -4. may i please receive brainliest

help me find the answer to this please. 8745/53 as an quotient

Answers

Answer:

165

Step-by-step explanation:

8745/53=165

Factor each of the following polynomials completely
1. 4x + 8
2.9x² - 25
3.x² + 4x + 4

Answers

Answer:

ok:

Step-by-step explanation:

1. 4(x+2)

2. (3x + 5)(3x - 5)

3. [tex](x+2)^2[/tex]

Answer:

1. 4(x+2)

2. (3x+5)(3x-5)

3. (x+2)(x+2)

Step-by-step explanation:

This type of triangle always has two congruent legs and two congruent
base angles. *

Answers

Answer:

Isosceles is correct........

Answer:

isosceles triangle

Step-by-step explanation:

Which don’t lie??????????!!!!!

Answers

Answer:

I think its -12. If you apply y2-y1/ x2-x1 to the equation.

Answer:

i belive that it might be c

Here's the thing about average, all you do is take all of the numbers, add them up, then divide them by the number of numbers there are.

For example, 93 + 97 + 89 + 81 = 360. There are 4 numbers so you would take 360 and divide it by 4 which gets you 90. 90 is your average.

To figure out the highest score you are able to get, take the highest score you can possibly score (100) and add it to the mix. 93 + 97 + 89 + 81 + 100 = 460. Now, there are 5 numbers. So you take 460 and divide it by 5 which will get you 92.

Hope I helped.

Two siblings Edwin and Rhea are both going skiing but choose different payment plans. Edwin's plan charges $45 for rentals and $5.25 per lift up the mountain. Rhea's plan was a bundle where her entire day cost $108. Set up an inequality that models the number of trips, n, up the mountain for which Edwin will pay more than Rhea. Solve the inequality. Also, what is the greatest amount of trips that Edwin can take up the mountain and still pay less than Rhea? Explain how you arrived at your answer.

Answers

Answer:

n>12

Step-by-step explanation

45+5.25n>108

-45 -45

5.25n > 63

then divide both sides by 5.25

n>12

Select the correct answer.
Which equation represents the vertical line passing through (7,-3)?
A.
x = -3
B.
y = -3
C.
x = 7
D.
y = 7

Answers

Answer:

C. [tex]x=7[/tex]

Step-by-step explanation:

So we know that a vertical line is represented by [tex]x=[/tex] so we can already rule out two of the options. We also know that since the line runs vertically, all points will start with the same [tex]x[/tex] coordinate. This means that the correct answer is [tex]x=7[/tex]

Answer:

the answer is c x=7

Step-by-step explanation:

What is the length of segment LI?
3.9
2.7
3.6
4.2

Answers

4.2 for sureee lmk if it’s right mark me as brainlister if so please :(

Write the equation of a line in slope-intercept form with a slope of -1 and a y-
intercept of -1.
y = -x - 5
y = -5x - 1
y = -x-1
y= -5x -5

Answers

Answer:

y = -x - 1

Step-by-step explanation:

Slope intercept form is y = mx + b, where m is the slope and b is the y intercept.

Plug in the slope and y intercept into the equation

y = mx + b

y = -x - 1 is the equation in slope intercept form

Answer:

y = -x - 1

Step-by-step explanation:

Slope intercept form is y = mx + b, where m is the slope and b is the y intercept.

Plug in the slope and y intercept into the equation

y = mx + b

y = -x - 1 is the equation in slope intercept form

PLEASE HELP I WILL MARK

Answers

Answer:

2. 5

3. 2 dollars a peice

that is all i know sorry

Step-by-step explanation:

hope it heps you

Answer(s):

5 miles per hour

2 dollars per battery

6 pages in a minute

10 miles per gallon

2 inches per hour

Step-by-step explanation:

30/6=5

24/12=2

40/8=6

60/6=10

16/8=2

PLEASE HELP ME WITH THIS PROBLEM!!!!!!!!!!

The following figures are not drawn to scale but AB and CD are straight lines. Find x.

Answers

Answer: x = 30

Step-by-step explanation:

Since AB and CD are straight lines, vertical angles formed by them are congruent. Angle DOB is equal to angle AOC which is equal to 2x. Since you know that a straight angle is equal to 180 degrees, you can say :

2x + 90 + x = 180

3x + 90 = 180

3x = 90

x=30

Hope this helped :)

Whats is the answer of 1x3x4x6+1

Answers

Answer:

Step-by-step explanation:

Answer:73

Step-by-step explanation:

PLEEEEEEEEEEEEEEEASE HELP ME WITH THIS! IT IS DUE TOMORROW!!!

Answers

Answer:

lines a and b would be parallel, and the reason is <3 and <6 are alternate interior angles

Step-by-step explanation:

Write an equivalent expressions for (8a2 -15a + 9) - (6a2 - 9a - 20).

Answers

Answer:

2a2 - 6a + 29

Step-by-step explanation:

Work out the product of 2⅔ and 3¾

Answers

Answer:

[tex]6\frac{5}{12}[/tex]

Step-by-step explanation:

[tex](\frac{8}{3} * \frac{4}{4} )+(\frac{15}{4} * \frac{3}{3} )[/tex] - so they have the same denominator

[tex](\frac{32}{12} + \frac{45}{12} )\\\\ \frac{32+45}{12} \\\\\frac{77}{12} \\\\[/tex]

1
What is 12_
4

7
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8

Answers

Answer:

12 is a Even Whole number..?

The robinson family went on a hike while camping. if they increased their elevation by 200 ft every 5 minutes, at what rate are they climbing? HELPPPPP

Answers

Answer:

40ft per minute

Step-by-step explanation:

Just simply divide 5 into 200

When rounded to the hundreds place, which of the numbers below round to 456,700?
A) 456,605
B) 456,739
C) 456,798
D) 456,698
E) 45,673

Answers

Answer:

If you can only pick one option I'd choose D.)

Step-by-step explanation:

Option D is only two numbers away from 456,700

The second closest number would be option B.)

Answer:

[tex]D) . \: 456,698 = 456,700 \: to \: the \: hundreds \: place.[/tex]

what is x and y equal to if x divided by y = 6

Answers

Answer:

x=12 a and y=2

Step-by-step explanation:

What’s the answer pls answer fast

Answers

Because you know there are 209 total seats, if there were 181 economy seats, there would be 28 first class seats.
181-28= 153
So 181 would be your answer.

If Syn spends 15 minutes running, he burns 200 calories. How long will it take Syn to burn 150 calories?

Answers

Answer:

11 minutes and 15 seconds (11.25 minutes/ 11 and 1/4)

Step-by-step explanation:

create the corresponding ratio by dividing 200 by 15, 200 calories per 15 minutes. Which equates to 40 calories every three minutes which means 40/3 or 13 1/3 calories every minute. You can verify this by multiplying 15 and 40/3 to get 200 again.

The last step is to divide the calories burned by the corresponding ratio (40/3)

150/(40/3) = 11.25

and .25 or 1/4 of 60 seconds(in a minute) is 15 since 60/4 = 15.

Solve for b: 3ab = -7

Answers

Since we are solving for b, you need to get it by itself. So you would divide both sides by 3a. That would leave b= -7/3a.

Hope this helps!!

ANSWER THIS FOR 11 POINTS, what are the slope and y intercept of the function?

Answers

Answer:

y intercept=4 and the slop is 1/3

Step-by-step explanation:

The y intercept is the point where the line intersects the y axis. As we can see the line is intecepting the y axis at point 0,4 or just 4. To find the slope from that point you need to go y places up or down and x places left or right-additionally the point has to be on that line. For example from point 0,4 which is our y-intercept if we go up 1 and over 3 to the right from that point then we get another point that's on the line.

-kinda hard to explain but hope this helps

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