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.
Daniel has a cylindrical container with a diameter of 10 inches. He fills it with sand to a depth of 6
1 answer:
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Answer:
-2x + 7/5
Step-by-step explanation:
(7-10x)/5
= +
= -2x + 7/5