Solve the equation by completing the square.x2 + x + 4 = 0
A. 4, -4
B. 1, 4
C. 0, 4
D. No real solution
Answer: D
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Solve the problem.A rectangular box with square base and no top is to have a volume of 32 ft3. What is the least amount of material required?
A. 36 ft2 B. 48 ft2 C. 40 ft2 D. 42 ft2
Use the intermediate value theorem for polynomials to show that the polynomial function has a real zero between the numbers given.f(x) = x4 - 9x2 + 18; 1.7 and 1.8
A. f(1.7) = 0.6579 and f(1.8) = -0.6624 B. f(1.7) = 0.3421 and f(1.8) = 0.6624 C. f(1.7) = -0.3421 and f(1.8) = -0.6624 D. f(1.7) = 0.3421 and f(1.8) = -0.6624
Simplify.
A. ± 
B. 
C. - 
D. 0
Answer the question.Consider the linear equation in three variables x - y + z = 9. Find a pair of linear equations that, when considered together with the given equation, will form a system having infinitely many solutions.
What will be an ideal response?