Answer:
5.5 minutes
Step-by-step explanation:
Fill in the given information and solve for t.
75 = -15cos(2πt/15) +65
-10/15 = cos(2πt/15)
t = 15/(2π)arccos(-2/3) ≈ 5.492
The volume reaches 75 dB about 5.5 minutes after the truck arrives.
Answer:
The garden is 4.5 ft by 6 ft.
Step-by-step explanation:
2x + 2(x+1.5) = 21
2x + 2x + 3 = 21
4x = 18
x = 4.5
A. The sound reflects I believe is the answer
Answer:
D. (-2,0) and (9,0)
Step-by-step explanation:
set the two factors equal to zero and find your two x values and those are the x intercepts. ( y value for x intercepts are always zero)
Answer:
B
Because the domain is on going and the y can only go so much which would be less than or equal to 2