Evaluate the polynomial for the given values of the variables.Evaluate 2x2 - y2 + 2xy for x = -1 and y = -4.
A. -22
B. 26
C. -6
D. -26
Answer: C
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Solve.A cube has a surface area of 6x2 + 108x + 486. Find the length of a side.
A. x - 9 B. x + 9 C. x + 54 D. 6(x + 9)
Solve the problem.Six freshmen move into a dormitory suite at the beginning of the semester. In order to get to know one another, they decide to have breakfast in pairs for the next few days, each student having a different breakfast partner each day until each student has had breakfast with all other students exactly once. Draw a graph with vertices representing students and edges representing breakfast dates. How many breakfasts will occur? How many days will the process take?
What will be an ideal response?
Find the x- and y-intercepts of f.f(x) = x2(x - 2)(x - 1)
A. x-intercepts: 0, -2, -1; y-intercept: 0 B. x-intercepts: 0, -2, -1; y-intercept: 2 C. x-intercepts: 0, 2, 1; y-intercept: 2 D. x-intercepts: 0, 2, 1; y-intercept: 0
Write an inequality whose solution set is the interval.[5, ?)
A. x > 5 B. x < 5 C. x ? 5 D. x ? 5