B. x > -4 I did da test. That's da correct one :-)
the discriminant b^2 - 4ac when the equation is in the form of ax^2 +bx+c=0
13x^2-16x = x^2 -x
we need to get in it the standard form
subtract x^2 from each side
12x^2 -16x = -x
add x to each side
12x^2 -15x = 0
12x^2 -15x -0 =0
a=12 b=-15 c=0
b^2 -4ac
the discriminant = b^2
b^2 = (-15)2 = 225
Answer:
a c
Step-by-step explanation:
Answer:
$17
Step-by-step explanation:
You need to find 20 percent. so find 10 percent or divide by ten then multiply that by two
Answer:
d
Step-by-step explanation:
