Answer:
Step-by-step explanation:
use the formula { a couple of times} cos 2 Θ = 2 cos ² Θ - 1 = 1 - 2 sin ² Θ....your answer will likely have a cos 2x , a cos 4x , and a cos 6x in it.....note : cos ² Θ - sin ²Φ = cos ( Θ + Φ) cos (Θ - Φ) will also be needed for appropriate choices of Θ & Φ in terms of x
Mode is the number that most occurs in the data. From the given data set, there is no repeated number. Thus, there is no mode for the data set.
Answer: 121
Step-by-step explanation:
Answer:
n = 9.2
Step-by-step explanation:
Isolate the variable by dividing each side by the numbers that do not contain the variable
-5√x = -15
-5 -5
√x = 3
x = 9
The answer is D.
