Solve the quadratic equation by completing the square.3x2 - 2x - 4 = 0
A. x = 
B. x = 
C. x = 
D. x = -4, x = 
Answer: A
Mathematics
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Find all specified roots.Cube roots of 8i
A. -2i, 
+ i, - 
+ i
B. 2i, 
+ i, - 
+ i
C. 2i, 
- i, - 
- i
D. -2i, - 
- i, 
- i
Mathematics
Find the surface area of the surface S.S is the upper cap cut from the sphere x2 + y2 + z2 = 169 by the cylinder 
.
A. 104 B. -208? C. 208? D. 3744?
Mathematics
Use a number line to find the sum.9 + (-9)
A. -90 B. 0 C. 9 D. 1
Mathematics
Evaluate the expression.38 - 5 ? 3
A. 99 B. 53 C. 76 D. 23
Mathematics