Find the vertex for the parabola whose equation is given.y = -x2 - 7x - 9
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the problem.Find b so that the line 
is tangent to the circle 
in the first quadrant.
A. 
B. 10
C. 
D. 5
Mathematics
Find the indicated matrix.(A + B)2, where A = 
, B = 
A. 
B.
C. 
D. 
Mathematics
Solve the problem.BJ can overhaul a boat's diesel inboard engine in 20 hours. His apprentice takes 60 hours to do the same job. How long would it take them working together assuming no gain or loss in efficiency?
A. 12 hr B. 80 hr C. 15 hr D. 6 hr
Mathematics
Perform the indicated operation.11y2(-5y2 - 3y + 7)
A. 55y4 + 33y3 - 77y2 B. -55y4 - 33y2 + 77y C. -55y4 - 33y3 + 77y2 D. -55y3 - 33y2 + 77y
Mathematics