Solve the problem.The profit function for a product is given by P(x) = -0.7x3 + 115.5x2 - 3710x - 84,000 dollars, where x is the number of units produced and sold. Determine the levels of production and sale that give break-even.
A. 90 or 120 units
B. 100 units
C. 80 or 100 units
D. 120 units
Answer: C
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Solve the problem.The shape and density of a thin shell are indicated below. Find the coordinates of the center of mass.Shell: cone x2 + y2 - z2 = 0 between z = 3 and z = 4Density: constant
A. 
B. 
C. 
D. 
Translate the English expression into an algebraic expression. Use x to represent the unknown number.The square root of a number
A. x2
B. 2x
C. x + x
D. 
Three vegetables were bought at the grocery store: tomatoes ($2.29 per pound), celery ($1.29 per pound), and broccoli ($1.69 per pound). Twice as many pounds of tomatoes were bought as compared to celery. If a total of 42 pounds of vegetables were purchased at a price of $80.58, how many pounds of broccoli were bought? ??
A. 8 pounds B. 6 pounds C. 9 pounds D. 7 pounds E. 5 pounds
Graph the function.f(x) = (x - 5)(x - 2)(x - 1)2
A. 
B. 
C. 
D. 