Answer: 18.7 mph
Step-by-step explanation:
We want a unit rate where 1 is in the denominator, so we divide top and bottom by 41.1
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Answer:
its A
Step-by-step explanation:
Hightest exponent is 3
cubic
C is answer
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