Answer:
Only the First one, A is the correct answer. The other options such B and C are incorrect.
Step-by-step explanation:
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
1440 divided by 120 = 12 pen stands
hope it helps:))
3/4 x 6 = 18/4 = 4 1/2
she eats 4 1/2 bags of carrots in 6 weeks
Answer:
y-27=8·(x-3)
Step-by-step explanation:
