Answer:
A. 5x^2 − 2x − 24 = 0
Step-by-step explanation:
height = 5b-2
b =x
We can rewrite the height as
h = 5x-2
We know the formula for area of a triangle
A = 1/2 bh
A =1/2 x * (5x-2)
Distributing the x
A= 1/2 (5x^2 - 2x)
We know A =12
12 = 1/2 (5x^2 - 2x)
Multiply each side by 2
12*2 = 2*1/2 (5x^2 - 2x)
24 = 5x^2 - 2x
Subtract 24 from each side
24-24 = 5x^2 - 2x-24
0 = 5x^2 - 2x-24
The distance between any two points is the <em>absolute value of their difference</em>. Only one of those expressions provided represents the difference between -7 and 16; the others alter the numbers in one way or another. Which one of those absolute value expressions contains the <em>difference of -7 and 16</em>?
B = (d - c)/a
ab + c = d >> ab + c - c = d - c
ab = d - c >> (ab)/a = (d - c)/a
b = (d - c)/a
