Find the vertex and axis of symmetry of the graph of the function.f(x) = 4x2 - 40x
A. (5, -100); x = 5
B. (-5, 0); x = -5
C. (5, 0); x = 5
D. (-5, -100); x = -5
Answer: A
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Which of the following would not be a valid method of justifying the surface area of a sphere formula? ?
A. ?Taking apart the cover of a baseball. B. ?Placing square units over a sphere. C. ?Painting a sphere and determining the amount of paint used (in gallons/liters) and then converting this figure into square units. D. ?Tessellating a sphere with shapes with known areas. E. ?None of the above.
Solve.The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 5 amperes when the resistance is 342 ohms. What is the current when the resistance is 864 ohms?
A. 0.08 amps B. 12.6 amps C. 0.51 amps D. 2 amps
Determine whether the polynomial is a perfect square trinomial, a difference of squares, or neither.36x2 + 24x + 4
A. Difference of squares B. Perfect square trinomial C. Neither
Solve the problem.If f varies jointly as q2 and h, and f = 64 when q = 4 and h = 2, find q when f = 108 and h = 6.
A. q = 4 B. q = 2 C. q = 3 D. q = 6