1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nika2105 [10]
2 years ago
13

A ladder on a fire truck has its base at point B which is 4 metres above the ground. The ladder is extended and its other end re

sts on a vertical wall at point C, 16 metres above the ground. The horizontal distance between B and C is 9 metres. diagram not to scale 16 В. 4 Find the angle of elevation from B to C. degrees. Х The angle of elevation is​

Mathematics
1 answer:
Galina-37 [17]2 years ago
5 0

Answer:

53.1°

Step-by-step explanation:

Let x represent the wangle of elevation from B to C

Reference angle = x

Opposite side to x = 16 - 4 = 12

Adjacent = 9

Apply trigonometric ratio to find x.

Thus:

tan(x) = \frac{12}{9}

x = tan^{-1}(frac{12}{9})

x= 53.1 (nearest tenth)

Angle of elevation from B to C = 53.1°

You might be interested in
The first five terms of a sequence are 2, 5/3, 3/2, 7/5 and 4/3. what is the explicit formula?
katen-ka-za [31]

Answer:

  an = (n+3)/(n+1)

Step-by-step explanation:

The sequence can be written as ...

  4/2, 5/3, 6/4, 7/5, 8/6, ...

where the first numerator is n+3 and the first denominator is n+1. Each numerator and denominator increase by 1 from term to term, so the explicit formula can be written

  an = (n+3)/(n+1)

4 0
3 years ago
How would i figure this out
arsen [322]

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

To plot the line through the point, plot the point. Then find another point that has the given "rise" and "run". Draw the line through the two points.

__

The given point is (-7, -4). Locate that on the graph.

The slope is given as -2/3. This is the ratio of "rise" to "run", so it means the "rise" will be -2 for each "run" of 3. (rise/run = -2/3)

The rise is the vertical change. So, you want your second point to be 2 units below the given point. Its y-coordinate will be -4-2 = -6.

The run is the horizontal change. Your second point will be 3 units to the right of the given point, so its x-coordinate will be -7+3 = -4. Now, you can plot the point (-4, -6) and draw your graph through these two points.

4 0
3 years ago
What is the surface area of a cylinder that has the following measurements
otez555 [7]
50.24*2 + 75.36 = 175.84
6 0
2 years ago
Mr. Raysor bought crayons and markers for his school. He bought 5 times as many crayons as markers.He bought 30 boxes a total of
adoni [48]

X=markers

5x= crayons

5x+x= 30

6x=30

X=5

5 markers.  25 crayons

7 0
3 years ago
a castle needs to be guarded 24 hours a day. 5 knights are ordered to slit each day's guard duty equally. how long will each kni
Aleonysh [2.5K]

Answer:

they would hav about like 4 hours and 0.6 mins

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • (05.02)
    9·2 answers
  • Please answer all questions
    12·1 answer
  • A magician charges parties a $30 fee to cover travel and miscellaneous expenses plus $19.99 per hour. What an equation for that?
    10·2 answers
  • 1. m+ 10< 16
    15·1 answer
  • Which is not a likely area of application of statistics in business?
    12·1 answer
  • I need help ASAP please
    10·1 answer
  • What is the slope of the line that passes through the points (−4,−3) and (14,0)?
    12·1 answer
  • If 4200 out of 5600 person's voted in an election the percentage which did not vote was​
    5·1 answer
  • Which of the following numbers is between 0.08 and 0.4?
    5·1 answer
  • (4√7 + √3) (√7 - 2√3)<br> Solve by multiplying and simplifying radical expression
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!