Factor the expression completely.y2 - 11y + 18
A. (y + 2)(y + 9)
B. (y - 2)(y + 9)
C. (y - 18)(y - 1)
D. (y - 2)(y - 9)
Answer: D
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Find the unit tangent vector T and the principal unit normal vector N. r(t) = (ln(cos t) + 3)i + 6j + (4 + t )k, -?/2 < t < ?/2
A. T = (sin t)i - (cos t)k; N = (cos t)i - (sin t)k; B. T = (-sin t)i + (cos t)k; N = (-cos t)i + (sin t)k C. T = (sin t)i + (cos t)k; N = (cos t)i - (sin t)k D. T = (-sin t)i + (cos t)k; N = (-cos t)i - (sin t)k
Solve the problem.Use the Huntington-Hill method to apportion eleven seats among State P, State Q, and State R. The populations of the states are State P, 0.75 million; State Q, 1.2 million; and State R, 1.5 million. Begin by giving one representative to each state. List the order in which the representatives are apportioned.
A. R, Q, P, R, Q, R, Q, R, Q, R, R B. R, Q, P, R, Q, R, P, Q, R, Q, P C. R, Q, P, R, Q, R, P, Q, R, Q, R D. R, Q, P, Q, R, P, Q, R, Q, R, P
Describe where the following number can be found in Pascal's triangle.C(53, 6)
A. The last entry in the sixth row B. The fifteenth entry in the 61st row C. The sixth entry in the 53rd row D. The 53rd entry in the sixth row
Solve the problems.Last year, Maria earned $378 per week. This year, her salary increased to 
per week. What is the percent of increase? Round to the nearest tenth of a percent.
A. 9% B. 91% C. 91.7% D. 8.3%