For the given arithmetic series, what is Sn?a1 = 4, d = 7, and n = 15
A. 810
B. 795
C. 3180
D. 1590
Answer: B
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Solve the problem.An object is rolling with a driving force that suddenly ceases. The object then rolls 10 meters in the first second, and in each subsequent interval of time it rolls 80% of the distance it had rolled the second before. This slowing is due to friction. How far will the object eventually roll?
A. 50.0 m B. 12.2 m C. It will roll an infinite distance. D. 20.0 m
Solve the triangle, if possible. If the triangle represents the ambiguous case, solve for all possible triangles. Approximate values to the nearest tenth when appropriate.
A. ? = 29°, ? = 73°, c = 75 B. ? = 29°, ? = 73°, c = 81 C. ? = 73°, ? = 29°, c = 79 D. No solution
Solve the problem.In how many ways can 8 people be chosen and arranged in a straight line, if there are 11 people from whom to choose?
A. 990 B. 88 C. 1980 D. 6,652,800
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.6c - 15cd + 6d
A. prime B. 3(2c - 5cd + 2d) C. 3(-3c + 2d) D. 3(2c + 5cd - 2d)