Triple the dimensions, multiply, and you get D
Answer:
A
Step-by-step explanation:
You have to solve for the amount of readers.
=500 readers.
X²+3x-21=0
1) we solve this square equation:
x=[-3⁺₋√(9+84)] / 2=(-3⁺₋√93)/2
We have two solutions:
x₁=(-3-√93)/2
x₂=(-3+√93)/2
2) we compute the product of the 2 solutions found.
[(-3-√93)/2][(-3+√93)/2] =(-3-√93)(-3+√93) / 4=
=(9-93)/4=-84/4=-21
Answer: the product of the 2 solutions of this equation is -21
They are vertical angles, thus they are equal to each other:
5x + 12 = 6x - 10
22 = x
x = 22
