Find the degree of the polynomial.x2y - x4 + 5xy - 9
A. 3
B. 9
C. 4
D. 2
Answer: C
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Write the equation for the line passing through the point (15,17) which is perpendicular to the line y = 7.
What will be an ideal response?
Solve the problem.An airline with two types of airplanes, P1 and P2, has contracted with a tour group to provide transportation for a minimum of 400 first class, 750 tourist class, and 1500 economy class passengers. For a certain trip, airplane P1 costs $10,000 to operate and can accommodate 20 first class, 50 tourist class, and 110 economy class passengers. Airplane P2 costs $8500 to operate and can accommodate 18 first class, 30 tourist class, and 44 economy class passengers. How many of each type of airplane should be used in order to minimize the operating cost?
A. 7 P1 planes and 11 P2 planes B. 11 P1 planes and 7 P2 planes C. 9 P1 planes and 13 P2 planes D. 20 P1 planes and 0 P2 planes
Factor the expression completely, if possible.a3 - 6a2b + 9ab2
A. a(a + 3b)2 B. ab(a - 3)2 C. a(a - 3b)2 D. Does not factor
Solve.Translate the following phrase into mathematical expressions. Use x to represent "a number."a. The product of a number and 9b. Four times a number subtracted from 17
A. a. x + 9 b. 17 - 4x B. a. 9x b. 4x - 17 C. a. 9x b. 17 - 4x D. a. x + 9 b. 4x - 17