Step-by-step explanation:
5. Determine whether the
x
y
11
-2
-1
2.
0
-1
1
2
2
11
Is it a linear quadratic or exponential
Answer:
Step-by-step explanation:
Given is a trignometric equation in x, as

TO make it in one trig ratio, we can replace sin2x as 2sinx cosx
WE get now


Principal solution is 
x = ±π/2 + 2kπ, where k is any integer or
x=±pi/6 +k pi, where k is any integer.
General solution is
Answer:
w = 10
Step-by-step explanation:
9(w - 9) -2 = -7 + 7(w -8)
Expand:
9w - 81 - 2 = -7 + 7w - 56
Rearrange:
9w - 7w = -7 - 56 + 81 + 2
2w = 20
w = 10
Because the angle ACB is a central angle, and arc AB=93⁰,
so angle ACB also = 93⁰.