Solve the system by using the inverse of the coefficient matrix. 3x + 5y = -10-3x - 6y = 9
A. {(-5, 1)}
B. {(5, -1)}
C. {(-1, 5)}
D. {(1, -5)}
Answer: A
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Use integration by parts to establish a reduction formula for the integral.
, n ? 1
A. 
= 
tann-1 x - 
B. 
= tann-1 x - 
C. 
= 
tann-2 x - 
D. 
= 
tann-1 x + 
Solve the problem.A bike road race starts at an elevation of 920 feet and passes through 5 stages where the elevation changes by -42 feet, 296 feet, 599 feet, 433 feet, and -708 feet. At what elevation does the race end?
A. -2998 feet B. 1498 feet C. 391 feet D. 2998 feet
Solve the problem.A manufacturer's cost is given by C = 200 
+ 1000, where C is the cost and n is the number of parts produced. Find the cost when 8 parts are produced.
A. $1566 B. $1400 C. $100 D. $1200
Solve the problem.If (8, -4) is the endpoint of a line segment, and (12, -5) is its midpoint, find the other endpoint.
A. (16, -6) B. (6, 4) C. (16, -3) D. (0, -2)