Factor the polynomial completely. If the polynomial cannot be factored, write "prime."5x2 - 49x + 72
A. (5x - 9)(5x + 8)
B. 5(x - 9)(x - 8)
C. (5x - 9)(x - 8)
D. (5x + 8)(x - 9)
Answer: C
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Solve the problem.The number of years since two independently evolving languages split off from a common ancestral language is approximated by 
where r is the percent of words from the ancestral language common to both languages now. Find r if two languages split about 1365 years ago.
A. 136.5% B. 7.6% C. 76% D. 13.65%
Solve the problem.Maria and Charlie can deliver 75 papers in 3 hours. How long would it take them to deliver 60 papers?
A. 3.2 hr B. 3.8 hr C. 2.4 hr D. 180 hr
Provide an appropriate response.Overhead expenses are:
A. costs related to a specific product B. costs that directly contribute to the operation of a business C. costs directly related to a specific department D. costs that indirectly contribute to the operation of a business
Graph the polar equation.r2 = 9 cos (2?)
A. 
B. 
C. 
D. 