-4a+3b You have to add all a's together and all b's ;)
The equation only has 1 solution
The measure of angle FDE must be 90 degree, if D is a point on the circle. If D is not a point on the circle, we are unable to determine the measure of angle FDE.
When you have angle with the vertex on a circle and the sides go through the ends of the diameter, the angle is always a right angle.
Answer: <em>x</em> = -2
Work:
Convert 216 = 6³
Therefore: 6³ = 6^(4x+11)
⇒ Bases cancel out:
3 = 4x + 11 ⇒ Subtract 11 from both sides
-8 = 4x ⇒ Divide both sides by 4
x = -2