Solve the problem.If n(A) = 15, n(A ? B) = 43, and n(A ? B) = 11, find n(B).
A. 40
B. 28
C. 39
D. 38
Answer: C
Mathematics
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Determine whether the sequence is geometric.1, 
, 15, 15
, . . .
A. Geometric B. Not geometric
Mathematics
Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Incorrect; should be 68 R542 B. Incorrect; should be 63 R604 C. Correct D. Incorrect; should be 63 R705
Mathematics
Solve.Use the Maclaurin expansion of cos x to find 
.
A. 
B. ?
C. 0
D. 1
Mathematics
Solve the application problem.The height of a triangle is 3 centimeters more than the base. If the area of the triangle is 44 square centimeters, find the base and height of the triangle.
A. Base: 8 cm; Height: 11 cm B. Base: 7 cm; Height: 10 cm C. Base: 7 cm; Height: 12 cm D. Base: 5 cm; Height: 8 cm
Mathematics