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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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?
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