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
J. $5500 loan, compound interest, annual rate of 6%, term of three years
-90 = -100 + x
To solve for X, you need to isolate it ( get it by itself).
Add 100 to each side:
-90 + 100 = -100 + x + 100
Simplify:
10 = x
X = 10
Yes it is.
2/3
2*3 / 3*3
6/9
7/9 > 6/9 = 2/3
7/9 > 2/3
Answer: Yes, 7/9 > 2/3
Answer:
the answer is 24
Step-by-step explanation:
68-38 = 24