The answer is either c or d. I would go with answer c though. sorry if it is wrong
I believe the correct answers would be A & C
I believe the X numbers are divided by 2, to get the Y numbers. So the blank X box is 1 and the other is 12.
Answer:
342
Step-by-step explanation:
x=5
72+72+18(5)+9+18 (5)+9=342
Answer:
We have sinθ = 12/13
The method here is to figure out the value of θ
Using a calculator sin^(-1)(12/13) =67.38°
67.38° is in quadrant 1 so we must substract 67.38° from 180° wich is π
- 180-67.38= 112.61° ⇒ θ= 112.61°
Now time to calculate cos2θ and cosθ using a calculator
- cosθ = -5/13
- cos2θ = -0.7
The values we got make sense since θ is in quadrant 2 and 2θ in quadrant 3