Answer:

Step-by-step explanation:
<u>Value of functions</u>
To evaluate a function for a given value of x, we replace the x for the value and perform the resulting operations.
The given function is (corrected):

We need to find f(-4), so we use x=-4:



The answer is .90º + 90º = 180º, <span>.90º is not an obtuse angle</span>
Answer:
12 feet long bc of cross multiplying then dividing the product by 10 which gives you 12!
Answer:
4x+13
Step-by-step explanation:
combine like terms -2x and 6x to get 4 then combine 9 and 4 to get 13