Solve the quadratic equation by completing the square.x2 + 8x - 7 = 0
A. x = -4 ± 
B. x = 4 + 
C. x = -4 ± 2
D. x = -1 ± 
Answer: A
Mathematics
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Using the horizontal-line test, determine whether the function is one-to-one.
A. one-to-one B. not one-to-one
Mathematics
Factor when possible.ab4 - 16a3b2
A. ab2(b - 4a)2 B. ab2(b + 4a)(b - 4a) C. a(b2 + 4ab)(b2 - 4ab) D. Prime
Mathematics
Provide an appropriate response.Use the simplex method to minimize Z = -x1 + 2x2 subject to x1 + x2 ? 4 5x1 + x2 ? -12 2x1 + 5x2 ? -14 3x1 - 2x2 ? 17
What will be an ideal response?
Mathematics
Find two functions defined implicitly by the given relation.x + y2 = 9
A. y = 9 - x or y = -9 + x
B. y = 
or y = - 
C. y = 
or y = 
D. y = 9 - x or y = 9 + x
Mathematics