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
blondinia [14]
3 years ago
9

A 20ft ladder is leaning against a building. If the base of the ladder is 6ft from the base of the building. What is the angle o

f elevation of the ladder?
Mathematics
1 answer:
deff fn [24]3 years ago
5 0

9514 1404 393

Answer:

  72.5° ≈ 73°

Step-by-step explanation:

The ladder length is the hypotenuse of the right triangle that has the distance from the building as its base and the height up the building as the height of the triangle. The given dimensions are those of the side adjacent to the angle and the hypotenuse.

The appropriate trig relation is ...

  Cos = Adjacent/Hypotenuse

  cos(angle) = 6/20

The inverse cosine function (arccos) is used to find the angle from its cosine.

  angle = arccos(6/20) ≈ 72.54°

The angle is 72.5° rounded to tenths, or 73° rounded to degrees.

You might be interested in
Which percent is equivalent to 13/25?
Diano4ka-milaya [45]

Answer:

52%

Step-by-step explanation:

13/25  

13 ÷ 25

0.52

0.52 × 100/100

0.52 × 100%

(0.52 × 100)%  

52%

4 0
3 years ago
8.21 as a mixed number
Svetllana [295]
Here, just divide the decimal portion with equal exponent of 10
So, 8.21 = 8 21/100

In short, Your Answer would be 8 21/100

Hope this helps!
6 0
3 years ago
Help asap check picture
Alex_Xolod [135]

The value of the P(2 < X ≤ 4) is 0.14 if the probability of P(x =3) is 0.10 and P(x = 4) is 0.04.

<h3>What is a normal distribution?</h3>

It's the probability curve of a continuous distribution that's most likely symmetric around the mean. On the Z curve, at Z=0, the chance is 50-50. A bell-shaped curve is another name for it.

We have a probability distribution shown in the table:

P(2 < X ≤ 4)

We have to find the probability between 2 and 4

P(2 < X ≤ 4) = P(x =3) + P(x = 4)

From the table

P(x =3) = 0.10

P(x = 4) = 0.04

P(2 < X ≤ 4) = 0.10 + 0.04 = 0.14

Thus, the value of the P(2 < X ≤ 4) is 0.14 if the probability of P(x =3) is 0.10 and P(x = 4) is 0.04.

Learn more about the normal distribution here:

brainly.com/question/12421652

#SPJ1

8 0
2 years ago
A set of data are put in numerical order, and a statistic is calculated that divides the data set into two equal parts. Which of
zvonat [6]
Median because the median is the MIDDLE of the data when ordered from least to greatest.
7 0
3 years ago
Kenji wants to divide 48.6 by 0.15. What is the first step that Kenji must complete?
wolverine [178]
It is the second choice
hope this helps:)
please mark thanks and brainliest:))
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the 10th term in the pattern with the formula 5n + 100?
    12·1 answer
  • Help ma please
    11·2 answers
  • Which shows three ordered pairs that are all solutions of the equation y = x + 7?
    8·1 answer
  • −15x+4≤109 OR −6x+70&gt;−2
    15·2 answers
  • Which of the following best describes galena’s cleavage (see animation in placemark)? a. three directions at ~90° b. three direc
    11·1 answer
  • 4x + 2(x – 3) = 4x + 2x – 11
    15·1 answer
  • How many 1/6 are in 21/2
    9·2 answers
  • (15 points) Please help! 2 pre-algebra questions! Will mark brainliest
    7·1 answer
  • The candy shop made 1 3/8 pounds of chocolate. They sold 1 1/3 pounds. How many pounds of chocolate do they have left?
    13·1 answer
  • 1 point
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!