Answer:
B is answer
Step-by-step explanation:
Answer:
240
Step-by-step explanation:
2 is 1 + 1 so 120 + 120 must be the equivalent of 2.
its B. 50°
Triangle Have 180°
- 180 - 90 = 90
- 90 × 2 = 180
Half of triangle Have 90°
Vertex form:
y = a(x - h)² + k
I have not learned this stuff yet, but by using online calculators, I can determine that the vertex form is:
Y = (x - 4)² - 19
I believe so :/
-π/2 < arctan(x) < π/2
So cos(π/2) < cos(arctan(x)) < cos(0)
0 < cos(arctan(x)) < 1