Decide whether or not the points are the vertices of a right triangle.(8, -7), (14, -5), (13, -10)
A. No
B. Yes
Answer: A
Mathematics
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Find the first term and the common ratio of the geometric sequence.1.4, -0.7, 0.35, -0.175, . . .
A. a1 = 1.4, r = -0.5 B. a1 = -0.5, r = -0.05 C. a1 = 0.5, r = 0.05 D. a1 = 1.4, r = 0.5
Mathematics
29.4 × 8.8
A. 258.72 B. 259.82 C. 38.2 D. 258.83
Mathematics
Complete the exercises using counting techniques. How many ways can a president, vice-president, secretary, and treasurer be chosen from a club with 8 members? Assume that no member can hold more than one office.
A. 32 B. 24 C. 70 D. 1,680
Mathematics
Simplify the expression.
A. 2 cos x tan x
B. 
cos x cot x
C. 2 cos x cot x
D. 
sin x cot x
Mathematics