The answer is 4 because the frequency is the number of cycles completed in one interval. Typically, the interval given is 2π. Here, you can count the cycles and get 4.
X / 96.6 = (80.5 - 35) / 80.5 ( because the small and large triangles are similar, because of the parallel lines)
x / 96.6 = 45.5 / 80.5
x = 96.6 * 45.5 / 80.5 = 54.6 m (answer)
Answer:
x = 5 or x = -5
Step-by-step explanation:
x^2−9=16
Add 9 to both sides
x^2 = 25
√x^2 = √25
x = 5 or x = -5
