Answer: a.
Step-by-step explanation:
Slope = -3/2, b = 3
so
y = -3/2x + 3
x-intercept when y = 0
so
-3/2x + 3 = 0
-3/2x = -3
x = -3 *(-2/3)
x = 2
answer
<span>C.2</span>
Answer:
385-13x
Step-by-step explanation:
that is my answer
I am guessing that you mean 2cos2(45° - x) = 1 + sin2x
According to a double angle identity, 2cos2θ - 1 = cos(2θ)
So, 2cos2(45° - x) - 1 = cos (90° - 2x)
= cos90°cos2x + sin90°sin2x
= (0)cos2x + (1)sin2x
= sin2x
Thus, 2cos2(45° - x) = 1 + sin2x