Find the exact value of the expression using the provided information.Find cos(s + t) given that cos s = - 
, with s in quadrant III, and 
with t in 
A. 
B. 
C. 
D. 
Answer: D
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Find the values of x for which the geometric series converges.
A. |x| < 9
B. |x| < 
C. |x| < 18
D. |x| < 1
Write the equation in standard form of the line satisfying the given conditions.Through (3, 1); 0 slope
A. y = -3 B. x = -1 C. y = 1 D. x = 3
Find the number of elements in the indicated set by referring to the given table.The table below shows the results of a poll taken in a U.S. city in which people are asked which candidate they intend to vote for in an upcoming presidential election. 
Find the number of people in the set B ? (R' ? A)
A. 0 B. 461 C. 988 D. 440
Solve the equation. If the solutions involve square roots, give both the exact solutions and the approximate solutions to three decimal places.2x2 + 8x = -7
A. 
? -1.293, 
? -2.707
B. 
? -3.293, 
? -1.354
C. 
? -0.646, 
? -1.354
D. 
? 0.739, 
? -4.739