Find the area.
A. 1,530 cm2
B. 648 cm2
C. 765 cm2
D. 756 cm2
Answer: C
Mathematics
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Solve the system.x2 - y2 = 39x - y = 3
A. {(-8, -5)} B. {(8, -5)} C. {(-8, 5)} D. {(8, 5)}
Mathematics
Find the derivative.
A. 16x9/2
B. 8x4
C. 
x6 - 
D. 
x6
Mathematics
Solve.In a practice run, a race car driver's speed is clocked at 140.847 mph at the end of his first lap, and at 167.228 mph at the end of the next lap. How much faster was he driving at the end of the second lap?
A. 26.391 mph B. 25.381 mph C. 26.481 mph D. 26.381 mph
Mathematics
Specify the center and radius of the circle.(x - 4)2 + (y + 7)2 = 81
A. center: (-4, 7); radius: 81 B. center: (7, -4); radius: 81 C. center: (-7, 4); radius: 9 D. center: (4, -7); radius: 9
Mathematics