Use FOIL (First, Outside, Inside, Last)
x(x) = x²
x(9) = 9x
-2(x) = -2x
-2(9) = -18
x² + 9x - 2x - 18
simplify by combining like terms
x² + 9x - 2x - 18
x² + 7x - 18
x² + 7x - 18 is your answer
hope this helps
Answer:
C. f(-1) = 0
Step-by-step explanation:
Find the value that f(x) is at where x= -1.
Good luck, hope this helped!
Let's first figure out how much it flies in a hour,
560/5 = 112
8 x 112 = 896
(112 mph)
Answer:
105
Step-by-step explanation:
Remember PEMDAS
1/2 x 4 = 2
2 x 48 = 96
You should now have 9 + 96
9 + 96 = 105
Answer:6.5%
Step-by-step explanation:
There are 4, number three cards and 4 diamond cards in a deck of 52 cards. Divide 52 by 8.