Find the vertex of the parabola.f(x) = 2x2 - 20x + 54
A. (5, 4)
B. (-4, -5)
C. (4, 5)
D. (-5, -4)
Answer: A
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Solve the problem.If November is your starting month, what month will it be 16 years from November?
A. March B. July C. April D. November
Find the x- and y-intercepts of f.f(x) = (x + 2)(x - 3)(x + 3)
A. x-intercepts: -3, 3, 2; y-intercept: 18 B. x-intercepts: -2, -3, 3; y-intercept: 18 C. x-intercepts: -3, 3, 2; y-intercept: -18 D. x-intercepts: -2, -3, 3; y-intercept: -18
A young tree is planted in the center of an equilateral triangle.Three wires are attached to the tree as shown.Why should the wires all be the same length? Assuming the dimensions shown, how long should each wire be?
Set up the linear programming problem.Mrs. White wants to crochet hats and afghans for a church fundraising bazaar. She needs 5 hours to make a hat and 3 hours to make an afghan, and she has no more than 39 hours available. She has material for no more than 11 items, and she wants to make at least two afghans. Let x = the number of hats she makes and y = the number of afghans she makes. Write a system of inequalities that describes these constraints.
A. 5x + 3y ? 39 x + y ? 11 y ? 2 B. 5x + 3y ? 39 x + y ? 11 x ? 2 C. 5x + 3y ? 39 x + y ? 11 y ? 2 D. 3x + 5y ? 39 x + y ? 11 x ? 2