100 - 45 - 20 (0.2 = 20%) - 12.5 (1/8 = 12.5%) = 22.5%
Answer:Write f(x)=x^2+2x-99 in standard form and please show your work
Step-by-step explanation:f
(
x
)
=
x
2
+
2
x
−
99
Solution:
<u>Note that:</u>
- Given expression: (x² + 4x) − (x² + 6x − 3)
<u>Remove the brackets</u>
- (x² + 4x) − (x² + 6x − 3)
- => x² + 4x - x² - 6x + 3
<u>Combine like terms</u>
- x²(1 - 1) + x(4 - 6) + 3
- => x²(0) + x(-2) + 3
- => -2x + 3
You know if something is a function or not because of the X will not be repeated. If it is, then it's not a function.
A. 0 and 2 are repeated in X
B. Nothing is repeated for X
C. 2 and 3 are repeated for X
D. 2 and 3 are repeated for X
B is your answer
