In this problem, cost, revenue, and profit are in dollars and x is the number of units. Suppose that the total revenue function is given by 
, and that the total cost function is given by 
. Find
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?
A. 84.88. The sale of the 101st unit will increase profit by $84.88.
B. 84.88. The sale of the 101st unit will decrease profit by $84.88.
C. 84.75. The sale of the 101st unit will increase profit by $84.75.
D. 85.00. The sale of the 101st unit will increase profit by $85.00.
E. 85.00. The sale of the 101st unit will decrease profit by $85.00.
Answer: A
Mathematics
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?
A. 84.88. The sale of the 101st unit will increase profit by $84.88.
B. 84.88. The sale of the 101st unit will decrease profit by $84.88.
C. 84.75. The sale of the 101st unit will increase profit by $84.75.
D. 85.00. The sale of the 101st unit will increase profit by $85.00.
E. 85.00. The sale of the 101st unit will decrease profit by $85.00.
Answer: A
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Solve the problem.Under standard conditions, molecules of a gas collide billions of times per second. If each molecule has diameter t, the average distance between collisions is given by 
where n, the volume density of the gas, is a constant. Find 
.
A. 
= - 
B. 
= - 
C. 
= 
D. 
= 
Find the nth term an of the geometric sequence.1, 
, 13, 13
, . . .
A. an = 13n-1 B. an = 13n/2 C. an = 13(n+1)/2 D. an = 13(n-1)/2
Graph the system of linear inequalities and indicate the solution set.4x - y ? -4x + 4y ? -16
A. 
B. 
C. 
D. 
Solve the problem.
What is the probability that the arrow will land on 4 or 1?
A. 
B. 
C. 4
D. 