4/5 if you are reducing it. If you are dividing it, it is 1.25
<span>-2b^2 -3b+14=0
(-2b - 7)(b - 2) = 0
hope it helps</span>
Answer:
25%
Step-by-step explanation:
100%-30%=70%
70%-45%=25%
For
y=ax²+bx+c
the x value of the axis of symmetry is -b/(2a)
so test them
A., -b/(2a)=-(-8)/(2*-2)=8/-4=-2, yep
B. -b/(2a)=-2/(2*1/2)=-2/1=-2, yep
C. -b/(2a)=-(-16)/(2*4)=16/8=2, nope, need -2
D. -b/(2a)=-12/(2*3)=-12/6=-2, yep
answer is C