Solve the problem.The demand equation for a certain product is P = 55 - 0.001x, where x is the number of units sold per week and P is the price in dollars at which one is sold. The weekly revenue R is given by 
What number of units sold produces a weekly revenue of $90,000?
A. 1590 or 53,312
B. 53,312
C. 1688 or 53,312
D. 1688
Answer: C
Mathematics
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Use integration by parts to establish a reduction formula for the integral.
A. 
= - 2xn-1 e- x2 - 2(n - 1) 
B. 
= n xn-1 e- x2 + 2n 
C. 
= - 
xn e- x2 + 
D. 
= - 
xn-1 e- x2 + 
Mathematics
Find the volume of the rectangular solid.
A. V = 70.560 cm2
B. V = 19.3 cm3
C.
| V = 251.615 cm3 |
D. V = 56.25 cm3
Mathematics
Find the LCM.24, 18, and 28
A. 504 B. 672 C. 252 D. 168
Mathematics
Find the slope and y-intercept of the line.-5x + 7y = 3
A. slope = 5; y-intercept = 15
B. slope = 
; y-intercept = 
C. slope = 
; y-intercept = 
D. slope = 
; y-intercept = - 
Mathematics