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
andreyandreev [35.5K]
3 years ago
6

A ladder is leading against a building so that the distance from the ground to the top of the ladder is 2 feet less than the len

gth of the ladder. Find the length of the ladder of the distance from the bottom of the ladder to the building is 10feet.
Mathematics
1 answer:
OlgaM077 [116]3 years ago
6 0

ans= 4

assume that the length of ladder is x

assume length of wall to top of ladder is x-2

the bottom is 10

use pythagoras to find x (hypotenuse)

should get 4 by factorising and squaring towards the end

You might be interested in
The value of U.S exports to China increased from $1480 million in 2011 to $2768 million
aliya0001 [1]

The percentage of increase was 87.027... %

<em><u>Explanation</u></em>

The value of U.S exports to China increased from $1480 million to $2768 million.

Suppose, the percentage of increase is  x\%

So, <u>the amount of increase</u> = x\% of 1480 =1480*\frac{x}{100}=14.8x

Thus, the equation will be......

14.8x= 2768-1480\\ \\ 14.8x=1288\\ \\ x= \frac{1288}{14.8}=87.027....

So, the percentage of increase was 87.027... %

7 0
3 years ago
F(x) =2^x−4<br> g(x) = 5/x<br><br> evaluate g(f(2))=
Afina-wow [57]

Answer:

not possible

Step-by-step explanation:

f(2)=2^2-4=0

g(f(2))=5/0 it's not possible

8 0
2 years ago
Arianna gathered data about the distance of 20 cities from the equator and the average hours of sunlight per day in December for
stich3 [128]

<u>Answer-</u>

<em>A. strong negative correlation.</em>

<u>Solution-</u>

<u>Direction of a relationship</u>

  1. Positive- If one variable increases, the other tends to also increase. If one decreases, the other tends to also. It is represented by positive numbers(i.e 0 to 1).
  2. Negative- If one variable increases, the other tends to decrease, and vice-versa.  It is represented by negative numbers(i.e 0 to -1)

<u>Strength of a relationship</u>

  1. Perfect Relationship- When two variables are linearly related, the correlation coefficient is either 1 or -1. They are said to be perfectly linearly related, either positively or negatively.
  2. No relationship- When two variables have no relationship at all, their correlation is 0.

As in this case, correlation coefficient was found to be -0.91, which is negative and close to -1, so it is a strong negative correlation.


5 0
2 years ago
Suppose a population has a mean of 400 and a standard deviation of 24. if a random sample of size 144 is drawn from the populati
Drupady [299]
Find the critical value or test statistic.
z = \frac{m - \mu}{\sigma/\sqrt{n}} = \frac{404.5 - 400}{24/\sqrt{144}} = \frac{4.5}{2} = 2.25

Find P(z > 2.25) using a normal distribution table

P(z > 2.25) = 0.0122
6 0
2 years ago
PLS HELP ASAP WILL MARK BRAINLIEST
hodyreva [135]

Answer:

N1ga figure it out

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Which conversion on the metric table need division
    10·1 answer
  • Lol of 6,8 and 24,32
    11·1 answer
  • Can Someone please help me on all four of these.
    10·1 answer
  • What is 4(-2)+(-3)(-5)?
    11·2 answers
  • Nina sold 25 orders of flowers from her shop on Valentine's Day. Of the 25, 14 of them
    6·1 answer
  • Assume that T is a linear transformation. Find the standard matrix of T. T: R^3 right arrow R^2 , T(e 1) =(1,2), and T(e2 ) =( -
    6·1 answer
  • Charlie buys a new Bey Blade for $11.38. He gives the cashier $15.00. How much change will he get back? Select TWO ways he will
    7·2 answers
  • A population of bacteria starts 8 and is doubling every 12 hours. What equation
    6·1 answer
  • What is 2/3 divided by 5/6 in simplest form
    9·2 answers
  • Hey guys, can someone help me with this, thank you ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!