Find the exact value under the given conditions.tan ? = 
, ? < ? < 
; cos ? = - 
, 
< ? < ?Find sin (? + ?).
A. 
B. 
C. - 
D. - 
Answer: D
Mathematics
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Find the values of x for which the geometric series converges.
A. 
B. -? < x < ?
C. 
D. diverges for all x
Mathematics
Solve the equation and check your solution.
= 5 + y
A. y = 2 B. y = 8 C. y = -2 D. y = -8
Mathematics
A football team had control of the ball for the first nine plays in a game. The chart shows the yards gained or lost in each of those plays. 
What was the net gain or loss considering the first eight plays?
A. +2 yards B. +24 yards C. +12 yards D. -2 yards
Mathematics
Find the product.(13a + b)(13a - b)
A. 169a2 + 26ab - b2 B. 26a2 - b2 C. 169a2 - 26ab - b2 D. 169a2 - b2
Mathematics