Profit The daily profit from the sale of a product is given by P = 18x - 0.2x²-98 dollars. What level of production maximizes profit? Round your answer to the nearest whole number.
a. production level of 90 units
b. production level of –90 units
c. production level of 6 units
d. production level of 307 units
e. production level of 84 units
d. production level of 307 units
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Factor the expression completely.pV + 
- pb - 
(gas laws)
A. 
(V - 
)
B. 
(V - b)
C. 
(V + b)
D. Cannot be factored.
Use implicit differentiation to find dy/dx.x = sec(9y)
A. 9 sec(9y) tan(9y)
B. 
cos(9y) cot(9y)
C. 
sec(9y) tan(9y)
D. cos(9y) cot(9y)
Solve the equation by factoring.(x + 4)2 = 4
A. {-6, -2} B. {6, 2} C. {-6} D. {-4}
The percent of a certain brand of computer chips that will fail after t years of use is estimated to be
?
.
?
What percent of this brand of computer chips are expected to be usable after 6 years?
?
A. 71.3% B. 56.7% C. 69.9% D. 64.2%