Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. (x + 1)(x + 5)
B. 
C. 
D. 
Answer: D
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Approximately 3.02 million people live in Costa Rica. 2.6 million are less than 50 years old, and 2 million are older than 14. How many people are in each of the categories 0-14 years, 15-49 years, and 50 years and older? Give your answer rounded to two decimal places if necessary. ? 0 to 14 years old: __________ million ? 15 to 49 years old: __________ million ? 50 years old and older: __________ million
What will be an ideal response?
Solve the problem.A company that produces radios has costs given by the function 
, where x is the number of radios manufactured and C(x) is measured in dollars. The average cost to manufacture each radio is given by 
(x) = 
. Find 
(100). (Round to the nearest dollar, if necessary.)
A. $57 B. $260 C. $55 D. $280
Rationalize the denominator and simplify. Assume that variables represent positive values.
A. 
B. 
C. 
D. 
Find all numbers for which the rational expression is not defined.
A. x = 3 and x = 3 B. x = 2 and x = -2 C. x = -3 and x = -3 D. x = 0