Solve the problem.The profit made when t units are sold, t > 0, is given by
Determine the number of units to be sold in order for P > 0 (a profit is made).
A. t = 20 or t = 18
B. t = 38
C. t > 20 or t < 18
D. 20 < t < 18
Answer: C
Mathematics
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Provide an appropriate response.Simplify:
A. 2y5
B. 2y5
C. 2
D. 3y5
Mathematics
Use the figure to answer the question.The weights (in pounds) of a group of high school students are listed below in a plot.
Which interval has the most students in it?
A. 140-149 B. 90-99 C. 130-139 D. 110-119
Mathematics
Solve the problem.The voltage E in an electrical circuit is given by E = 6.4 cos 110?t, where t is time measured in seconds. Find the period.
A.
B. 55
C.
D. 55?
Mathematics
Use elimination to determine whether the system of equations has no solutions, one solution, or infinitely many solutions.4x + 5y = -3-20x - 25y = 15
A. No solutions B. One C. Infinitely many
Mathematics