Answer:
The expression is 4x² and coefficient is 4.
Step-by-step explanation:
All have the same variables, x², so you add up together :


Let's apply the Law of Cosines here. We want the measure of the angle opposite the side with length 16.
Call that angle C.
Then 16^2 = 36^2 + 28^2 - 2(36)(28)cos C.
Solving for C: cos C = 16^2 - 36^2 - 28^2
------------------------- = 0.904, and C = 0.44 rad
-2(28)(36) or C = 25.21 degrees
So each of the 2 equal angles shown has the measure 25.21 degrees.
Unfortunately, I don't know the direction we should go from this point on.
Answer:
e = 9
Step-by-step explanation:
5(e + 6) = 75
Divide each side by 5
5/5(e + 6) = 75/5
e+6 = 15
Subtract 6 from each side
e+6-6 = 15-6
e = 9
9.
9 squared is 81. 81+4=85. 85 is divisible by 5.