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
ikadub [295]
3 years ago
10

A ladder is leaning against a tall wall with the foot of the ladder placed at 7 feet from the base of the wall and the angle of

elevation is 73' 30' 40"
Mathematics
1 answer:
djverab [1.8K]3 years ago
7 0

Complete question is;

A 21 ft ladder is leaning against a tall wall with the foot of the ladder placed at 7 feet from the base of the wall and the angle of elevation is?

Answer:

θ = 70.5°

Step-by-step explanation:

The angle of elevation simply means the angle that the ladder makes with the ground. Let's call this angle θ.

I've attached a diagram showing the triangle made by this ladder and the wall.

From the attached diagram, we can see the triangle formed by the ladder and the wall.

We can find the angle of elevation θ from trigonometric ratios.

Thus;

7/21 = cos θ

cos θ = 0.3333

θ = cos^(-1) 0.3333

θ = 70.5°

You might be interested in
-5 1/2 + 6 3/4 + (-4 1/4) =
Sergeeva-Olga [200]

Answer:

-3

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
How many ways can a person toss a coin 13 times so that the number of tails is between 7 and 11 inclusive?
lilavasa [31]
What are the choices?
4 0
4 years ago
Root 37 is closer to
Maru [420]
Root 37 is closer to 6, since root 36 is 6.
7 0
3 years ago
Find the domain: y= 6+9x 6− x−1
inna [77]

Answer:

Domain = {All real values of x EXCEPT x = -5 and x = 7}

Step-by-step explanation:

This is a rational function given as y=\frac{6+9x}{6-|x-1|}y=

6−∣x−1∣

6+9x

The domain is the set of all real value of x for which the function is defined.

For rational functions, we need to find which value of x makes the denominator equal to 0. We need to exclude those values from the domain.

Now

6 - |x-1| = 0

|x-1| = 6

x- 1 = 6

or

-(x-1) = 6

x = 6+1 = 7

and

-x+1=6

x = 1-6 = -5

So, the x values of -5 and 7 makes this function undefined. So the domain is the set of all real numbers except x = -5 and x = 7

3 0
3 years ago
What are the coordinates of r
Luba_88 [7]
The coordinates of r is ( 4, -1 )
5 0
3 years ago
Read 2 more answers
Other questions:
  • Of the 18 students who received an allowance, 16 do chores around the house. What fraction of the students, in the simple list f
    14·2 answers
  • Grace earns $7 for each car she washes. She always saves $22 of her weekly earnings. This week, she wants to have at least $63 i
    15·2 answers
  • How does writing 3.441 in expanded form show why the same digit can have different values?
    7·1 answer
  • Please answer.........
    6·1 answer
  • <img src="https://tex.z-dn.net/?f=2x%20%2B%20y%20%3D%203y%20-%202" id="TexFormula1" title="2x + y = 3y - 2" alt="2x + y = 3y - 2
    14·1 answer
  • How many times does 8 go into 14
    11·2 answers
  • Helphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelphelp
    14·1 answer
  • Which is the closest to the height of the ball
    7·1 answer
  • Simplify 9(8x - 9) + 13x
    6·2 answers
  • Find two numbers if their ratio is 9:11 and their and their difference is 6
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!