Hello,
A function f(x) is even if f(-x)=f(x).
A: (x-1)²+1≠((-x)-1)²+1
B:2x²+1=2(-x)²+1 is even
C:4x+2≠4*(-x)+2
D:2x≠2*(-x)
Answer B
62 ....... 100%
27.9 ..... X%
X = (27.9 x 100) / 62 = 2790 / 62 = 45
Answer:
+ 1
Step-by-step explanation:
Given
x² + 2x
Using the method of completing the square
add ( half the coefficient of the x- term)² to x² + 2x
= x² + 2(1)x + 1²
= x² + 2x + 1
= (x + 1)² ← perfect square
It is False because negative as good to the left
Answer:
99
Step-by-step explanation:
8x-13+7x-17=180( because stright angle = 180 degree)
15x-30=180
15x=210
x=14
8(14)-13= 99
