Answer:
Step-by-step explanation:
Note that the squares are on the sides of these triangles are on the hypotenuse/one leg.
We know that the area of a square is 
where l is the length. Since we know the area, we can find the square root of the area to find the side length.
So the side lengths are 
and 
.
Since we know the hypotenuse is and one of the legs is , we can use the Pythagorean Theorem to find the missing side.
The Pythagorean Theorem states that 
, where c is the hypotenuse and a/b are the legs.
We know the <em>hypotenuse </em>and <em>a leg</em>, so we can substitute inside
Squaring a square root is the same as doing nothing.
Hope this helped!
Answer:
hf(x) = 3/(x² - 1)
fh(x) = (9 - x²)/x²
Step-by-step explanation:
h(x) = 3/x
f(x) = x² - 1
h(f(x)) = 3/f(x)
hf(x) = 3/(x² - 1)
f(h(x)) = (h(x))² - 1
= (3/x)² - 1
= 9/x² - 1
fh(x) = (9 - x²)/x²
Answer:
16
Step-by-step explanation:
18,903
Answer:
See the explanation bellow
Step-by-step explanation:
Given data
We are told that Mary earns $7.25 an hour
The function for her salary is s = 7.25h
<em>s is a function of h because h is the time, and s a dependent variable on the time, the longer she works the more money she makes</em>
The amount of increase is (180 - 150) = 30 tons.
The increase as a part of the original amount is 30/150 = 0.2
To change a decimal into a percent,
move the decimal point 2 places that way ===> .
0.2 = 20%
