Solve by completing the square.a2 + 2a - 15 = 0
A. -3, 5
B. 3, -5
C. ±
D. -10, -5
Answer: B
Mathematics
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Find parametric equations for the line described below.The line through the point P(-5, 5, -4) parallel to the vector 
A. x = 5t - 5, y = -4t + 5, z = -5t - 4 B. x = -5t + 5, y = 4t - 5, z = -5t + 4 C. x = 5t + 5, y = -4t - 5, z = -5t + 4 D. x = -5t- 5, y = -4t + 5, z = 5t - 4
Mathematics
Find dy.y = ln(1 + x3)
A. 
dx
B. 
dx
C. 
dx
D. 
dx
Mathematics
Solve using addition/subtraction
Mathematics
Solve using the addition and multiplication principles together.27(x - 108) = 54
A. 106 B. 110 C. 108 D. 54
Mathematics