Solve the problem.How long would it take to drive 400 kilometers if your average rate of speed was 50 kilometers per hour? Use the formula d = rt.
A. 45 hr
B. 9 hr
C. 8 hr
D. 200 hr
Answer: C
Mathematics
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Evaluate the determinant.
A. -18 B. 18 C. 334 D. -182
Mathematics
Using the graph of the parabola, determine the coordinates of the vertex and focus, and the equation of the directrix.
A. Vertex (-4, 3), focus (-3, 3), directrix x = -2 B. Vertex (-3, 3), focus (-2, 3), directrix x = -4 C. Vertex (-3, 3), focus (-4, 3), directrix x = -2 D. Vertex (-3, 3), focus (-4, 3), directrix y = -2
Mathematics
Find the number of subsets of the set.{math, English, history, science, art}
A. 32 B. 28 C. 16 D. 24
Mathematics
Find the relative extrema of the function, if they exist.f(x) = -6x3 + 3
A. Relative minimum at (0, 3) B. Relative maximum at (0, -6) C. Relative maximum at (0, 3) D. No relative extrema exist
Mathematics