x = 32°
The triangle has 2 equal sides and is therefore isosceles, thus the 2 base angles are also congruent.
The 2 base angles are of size x°
x =
=
= 32
Initially, the point (-3,4) is in the second quadrant of the cartesian plane. If the rotation is about point (-3,0) at 90 degrees, you find a point that when connected to (-3,4) makes two lines perpendicular to each other. Since the direction is counterclockwise, you move 3 points to the left, then 4 points down. That would be (-7,0). The answer is A.
ANSWER
C. x=7
EXPLANATION
The given exponential equation is

We rewrite the right hand side as 3 raised to exponent 2.

Observe that the base of both sides of the equation are equal.
We now equate the exponents.

Solve for x,


The correct choice is C.
Answer: You didn’t make an error