Use the formula for the general term (the nth term) of a geometric sequence to find the indicated term of the sequence with the given first term, a1, and common ratio, r.Find a4 when a1 = 2000, r = - 
.
A. -125
B. -25
C. -250
D. 250
Answer: C
Mathematics
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Solve the problem.A given line goes through the points (-1, 3) and (-2, -4). If a line is to be drawn parallel to the given line, what will be its slope?
A. - 
B. - 7
C. 7
D. 
Mathematics
Find the sign of the following.sin 
, given that ? is in the interval (180°, 270°).
A. negative B. positive
Mathematics
Use the fundamental identities to find the value of the trigonometric function.Find cos ? if tan ? = 
and ? is in quadrant III.
A. 
B. - 
C. - 
D. 
Mathematics
Solve the equation.
= 3 + 
A. ? B. {-5, -8} C. {5, 8} D. {-1}
Mathematics