Find the indicated probability.The following contingency table provides a joint frequency distribution for the popular votes cast in the 1984 presidential election by region and political party. Data are in thousands, rounded to the nearest thousand. Political Party
A person who voted in the 1984 presidential election is selected at random. Compute the probability that the person selected is not from the South given that they voted Democrat.
A. 0.707
B. 0.287
C. 0.881
D. 0.293
Answer: A
Mathematics
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Calculate the arc length of the indicated portion of the curve r(t).r(t) = (1 + 2t2)i + (2t2 - 1)j + (6 - t2)k, 1 ? t ? 3
A. 90 B. 24 C. 30 D. 72
Mathematics
Solve using the elimination method.- x + 4y = -4-3x - 4y = 20
A. (-3, -3) B. (-4, -2) C. No solution D. (2, -4)
Mathematics
Find the coordinates of the vertex for the parabola defined by the given quadratic function.f(x) = (x + 3)2 - 2
A. (3, -2) B. (-3, -2) C. (3, 2) D. (-3, 2)
Mathematics
Solve.Find the supplement of an angle whose measure is 15.78°.
A. 195.78° B. 105.78° C. 164.22° D. 74.22°
Mathematics