Solve the problem.Pollution levels for a certain city are given by 
where t is in years. Find P when 
years. Round your answer to the nearest tenth.
A. 27.2
B. 25.1
C. 151.6
D. 37.2
Answer: D
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Solve the problem. Round to the nearest tenth, if necessary.If an object is thrown upward with an initial velocity of 
, its height after t sec is given by 
. Find the maximum height attained by the object. (The object will attain maximum height exactly at the halfway point in terms of the time t, where t = 0 is at the beginning of the object's flight, and the final time is when the object hits the ground.)
A. 20 ft B. 36 ft C. 48 ft D. 32 ft
Determine whether the inequality is true or false.14 ? 6
A. True B. False
Find u ? v, where ? is the angle between the vectors u and v. Round the answer to the nearest tenth.
=2, 
= 3, ? = 166°
A. -5.2 B. -5.8 C. -4.9 D. -6.2
Use the definite integral to find the area between the x-axis and f(x) over the indicated interval.f(x) = 
; [1, 3]
A. 3
B. 
C. 
D. 