Multiply. Write the answer in simplest form.
× 
A. 
B. 
C. 
D. 
Answer: D
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Write the first five terms of the geometric sequence with the first term a1 and common ratio r.a1 = 4, r = - 
A. 4, - 
, 
, - 
, 
B. 4, 
, 
, 
, 
C. 4, -12, 36, -108, 324
D. 
, - 
, 
, - 
, 
Find the volume of the geometric solid. If needed, use 3.14 as an approximation for ? and round the answer to the nearest tenth.Circular cylinder: r = 9 in., h = 15 in.
A. 3815.1 in.3 B. 7630.2 in.3 C. 423.9 in.3 D. 847.8 in.3
Factor the trinomial completely, or state that the trinomial is prime.84x2 + 49xy + 7y2
A. 7(3x + y)(4x + y) B. 7(3x - y)(4x - y) C. prime D. (21x + 7y)(4x + y)
Solve the linear programming problem.An airline with two types of airplanes, P1 and P2, has contracted with a tour group to provide transportation for a minimum of 400 first class, 900 tourist class, and 1500 economy class passengers. For a certain trip, airplane P1 costs $10,000 to operate and can accommodate 20 first class, 50 tourist class, and 110 economy class passengers. Airplane P2 costs $8500 to operate and can accommodate 18 first class, 30 tourist class, and 44 economy class passengers. How many of each type of airplane should be used in order to minimize the operating cost?
A. 13 P1 planes and 9 P2 planes B. 9 P1 planes and 13 P2 planes C. 14 P1 planes and 7 P2 planes D. 5 P1 planes and 22 P2 planes