Solve the problem.The rate at which an assembly line worker's efficiency E (expressed as a percent) changes with respect to time t is given by 
where t is the number of hours since the worker's shift began. Assuming that 
find E(t).
A. E(t) = 70t - 2t2 + 20
B. E(t) = 70t - 2t2 + 156
C. E(t) = 70t - 2t2 + 88
D. E(t) = 70t - 4t2 + 20
Answer: A
Mathematics
You might also like to view...
Find the integral.
A. - e1/t7 + C
B. 
+ C
C. - 
+ C
D. - 
+ C
Mathematics
Find the area of the specified region.Inside the cardioid r = ?(1 + sin ?), ? > 0
A. 
B. 
+ 2?2
C. 2??
D. 
- 2?2
Mathematics
Completely factor the polynomial or state that the polynomial is prime.14x2 - 49x - 28
A. 7(2x + 1)(x - 4) B. prime C. (14x - 7)(x + 4) D. 7(2x - 1)(x + 4)
Mathematics
The process of transforming state-owned firms to privately owned companies is known as deregulation.
Answer the following statement true (T) or false (F)
Mathematics