Rationalize the denominator. Assume all variables represent positive real numbers.
A. 
+ 9
B. x - 9
C. 
- 9
D. x + 9
Answer: A
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Solve the problem.Under certain conditions the wind speed S, in miles per hour, of a tornado at a distance d from its center can be approximated by the function 
where a is an atmospheric constant, and V is the approximate volume of the tornado, in cubic feet. Assume that a is 0.78. Find 
.
A. 
B. 
C. 
D. 
The Internet has eased international transactions in all of the following ways except
A. allowing service companies to outsource operations to low-cost-labor countries. B. reducing the amount of investment needed to expand into foreign markets. C. substantially reducing the liability of foreignness. D. increasing the efficiency of networking capability among business.
Solve.If the average cost per unit C(x) to produce x units of plywood is given by 
what is the cost per unit if 20 units of plywood are produced?
A. $1.50 B. $75.00 C. $21.43 D. $25.00
Provide an appropriate response.Find 
if 
What will be an ideal response?