Solve the problem. Give an exact answer and an approximation to the nearest tenth.The diagram below shows the side view of a plan for a slanted roof. Find the unknown length in this roof plan.
A. 
ft ? 4.7 ft
B. 
ft ? 18.4 ft
C. 
ft = 170.0 ft
D. 
ft ? 5.8 ft
Answer: B
Mathematics
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Factor the trinomial, or state that the trinomial is prime.2x2 - x - 55
A. (2x - 5)(x + 11) B. (2x + 5)(x - 11) C. (2x - 11)(x + 5) D. (2x + 11)(x - 5)
Mathematics
Simplify.73 ÷ 0
A. 3 B. 1 C. 0 D. undefined
Mathematics
Solve the problem.Ariel, a marine biologist, models a population P of crabs, t days after being left to reproduce, with the function
Assuming that this model continues to be accurate, when will this population become extinct? (Round to the nearest day.)
A. 547 days B. 911 days C. 1512 days D. 707 days
Mathematics
Divide.
A. 1.54 B. 15.4 C. 0.54 D. 5.4
Mathematics