Solve the problem.Find the number of units that must be produced and sold in order to yield the maximum profit, given the following equations for revenue and cost:R
= 7xC
= 0.001x2 + 0.6x + 80.
A. 3200 units
B. 3800 units
C. 6400 units
D. 7600 units
Answer: A
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Find an equation for the sphere with the given center and radius.Center (0, 0, 2), radius = 8
A. x2 + y2 + z2 + 4z = 60 B. x2 + y2 + 8 z2 + 4z = 60 C. x2 + y2 + 8 z2 - 4z = 60 D. x2 + y2 + z2 - 4z = 60
Provide an appropriate response.Today many landlords require tenants to purchase renters insurance before they sign a lease.
A. True B. False
Add or subtract as indicated. Write the answer in simplest form.
- 
A. - 
B. 
C. -4
D. - 
The volume of a gas varies directly with the temperature and inversely with the pressure. When the temperature of a certain gas is 
, the pressure is 30 pounds per square inch and the volume is 20 cubic feet. Find the volume when the pressure increases 10 pounds per square inch and the temperature decreases to 
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?
A. 
B. 
C. 
D. 
E. 