Answer:
x=120°
Step-by-step explanation:
sum of all angles in a triangle is equal to 180
let the unknown angle be



Answer:
i think the answer is C. $38.88
<u><em>hope it helps to your question!</em></u>
The function for the height is

f(0) = 5 cos(0) + 7 = 5 + 7 = 12 (verified)
The period is T = 12 hours.
After 4 hours (t = 4), the height is

A graph of f(t) confirms the answer.
Answer: 4.5 ft
Answer:
Yes
Step-by-step explanation:
That number is irrational because it does not repeat and rational number repeats