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
Leni [432]
2 years ago
8

A ladder is placed against a wall of a building 20m above the ground. The foot of the ladder is 15m away from the bottom of the

building. What is the length of the ladder?
Mathematics
1 answer:
olganol [36]2 years ago
4 0
By the Pythagorean Theorem:

L^2=20^2+15^2

L^2=400+225

L^2=625

L=25 m
You might be interested in
Original price $125 discount ? sale price $81.25
levacccp [35]

Answer:(125-81.25)/125 = 0.35 = 35%

Step-by-step explanation:

7 0
3 years ago
The ratio of the length and breadth of a rectangle is 5:4 and its area is 180 cm
Fed [463]

Answer:

Length = 15 cm, width = 12 cm, Perimeter = 54 cm

Step-by-step explanation:

The ratio of the length and breadth of a rectangle is 5:4 and its area is 180 cm².

Length = 5x

Breadth = 4x

Area of rectagle,

A = bl

180 = 5x × 4x

180 = 20x²

x² = 9

x = 3

Length = 5x = 5(3) = 15 cm

Width = 4x = 4(3) = 12 cm

Perimeter of rectangel,

P = 2(l+b)

= 2(15+12)

= 54 cm

Hence, this is the required solution.

6 0
2 years ago
Draw a diagram below on your paper use it to help Michael find out how much you will save if he's been 56 at the candy shop duri
finlep [7]
It’s 294790284849.9 equals ppñpp 66+1 is 69
8 0
3 years ago
Faye has a bag that contains 10 red, 13 blue, 16 white, 10 green, and 11 black marbles. She pulls a marble out of the bag withou
Rudik [331]
D i believe it’s the correct answer
5 0
2 years ago
Read 2 more answers
The average birth weight of elephants is 200 pounds. Assume that the distribution of birth weights is Normal with a standard dev
zhenek [66]

The birth weight of elephants at the 85th percentile is 262.16 pounds

<h3>What is the standard deviation?</h3>

Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.

Given that:-

The average birth weight of elephants is 200 pounds    \mu = 200

The deviation of 60 pounds.                                              \sigma = 60

The birth weight of elephants at the 85th percentile.      z = 85%= 1.036

Now from the formula of z-score:-

z=\dfrac{x-\mu}{\sigma}\\\\\\z=\dfrac{x-200}{60}\\\\\\1.036\times 60=x-200\\\\\\x=\ \ 262.16\ pounds

Hence the birth weight of elephants at the 85th percentile is 262.16 pounds

To know more about standard deviation follow

brainly.com/question/475676

#SPJ1

5 0
2 years ago
Other questions:
  • In a random poll taken in 2008, Gallup asked 1006 national adults whether they were baseball fans. 433 of the sample said they w
    6·1 answer
  • 5.1 divided by 104 rounded to the nearest tenth.
    13·2 answers
  • A bucket holds, at most, 30 golf balls. How many buckets are needed to hold 96 golf balls?
    8·2 answers
  • Maria throws a softball straight up into the air with an initial velocity of 50 ft/sec. The ball leaves her hand when it is exac
    10·1 answer
  • The sum of two integers is -13. Their difference is 7. What are the two integers?
    12·1 answer
  • HELP I NEED HELP ASAP
    5·1 answer
  • Given f(x) = x^2 + kx -15, and the remainder when f(x) is divided by x-2 is -23, then what is the value of k?
    8·1 answer
  • The shorter leg of a right triangle is 10 meters. the hypotenuse is 2 meters longer than the longer leg. Find all three sides
    10·1 answer
  • This year a partridge in a pear tree costs $210.18. in 2008, it cost $219.99. What is the change
    10·1 answer
  • A pipe extends from ground level to a location under the ground. Two-fifths of the way down the pipe, there is a leak. The leak'
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!