Answer:
<h2>a) |-13 - (-4)|</h2>
Step-by-step explanation:
The formula of a distance between two points (numbers) A and B on the number line:
d = |B - A| = |A - B|
We have A = -13 and B = -4. Substitute:
d = |-13 - (-4)|
Use the Pythagorean theorem. The equation for this right triangle would be a^2+b^2=c^2. Since you have one leg and the hypotenuse, you can plug these into the equation. It would be 7^2+b^2=12^2. Do the exponents. You will get 49+b^2=144. You need to get b by itself so subtract each side by 49. You get the equation b^2=95. Square root each side to get b=9.746. This rounds to 9.7. So the answer is A. Hope this helps! ;)
The ladder resting against the house forms a triangle similar to the one in the image below
To answer this question you must use Pythagorean theorem
![a^{2} +b^{2}=c^{2}](https://tex.z-dn.net/?f=a%5E%7B2%7D%20%2Bb%5E%7B2%7D%3Dc%5E%7B2%7D)
a and b are the legs (the sides that form a perpendicular/right angle)
c is the hypotenuse (the side opposite the right angle)
In this case...
a = x
b = 4
c = 20
^^^Plug these numbers into the theorem
![x^{2} +4^{2} =20^{2}](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B4%5E%7B2%7D%20%3D20%5E%7B2%7D)
solve for x
+ 16 = 400
= 384
x = 8√6
or
x ≈ 19.5959....
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
The bottom left one
Step-by-step explanation:
They are the only graph that has one output for each x value
Answer:
it's B
Step-by-step explanation:
because I took the test