Solve the problem.A painter can finish painting a house in 8 hours. Her assistant takes 10 hours to finish the same job. How long would it take for them to complete the job if they were working together?
A. 7 hours
B. 4
hours
C. 9 hours
D. 
hour
Answer: B
Mathematics
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Find the distance d(A, B) between the points A and B.A(3, 3); B(-5, 9)
A. 11 B. 10 C. 100 D. 20
Mathematics
Solve by completing the square.x2 + 4x = 3
A. -1 ± 
B. -2 ± 2
C. -2 ± 
D. 2 + 
Mathematics
Factor completely.4x2 - 20x + 24
A. (4x - 8)(x - 3) B. 4(x - 2)(x - 3) C. (x - 2)(4x - 12) D. 4(x - 6)(x + 1)
Mathematics
Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(3, -3)
A. (3
, 315°), (-3
, 135°)
B. (3
, 45°), (-3
, 225°)
C. (3
, 135°), (-3
, 315°)
D. (3
, 225°), (-3
, 45°)
Mathematics