Classify the real number as a natural number, whole number, integer, rational number and/or irrational number. The number may belong to more than one set.5.
A. rational number
B. integer, rational number
C. whole number
D. irrational number
Answer: A
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Provide an appropriate response.The region shown here is to be revolved about the x-axis to generate a solid. Which of the methods (disk, washer, shell) could you use to find the volume of the solid? How many integrals would be required in each case?
What will be an ideal response?
Solve the problem.Suppose that the labor cost for a building is approximated by 
where x is the number of days of skilled labor and y is the number of days of semiskilled labor required. Find the x and y that minimize cost C.
A. x = 15, y = 6 B. x = 6, y = 45 C. x = 18, y = 15 D. x = 36, y = 30
Use Descartes' Rule of Signs and the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = 5x4 - 9x3 + 14x2 - 18x + 8
A. -2, -1, 1, - 
; f(x) = (x - 1)(5x + 4)(x + 1)(x + 2)
B. 2, 
; f(x) = (x - 2)(5x - 4)(x2 + 1)
C. 1, 
; f(x) = (x - 1)(5x - 4)(x2 + 2)
D. -2, -1, 1, 
; f(x) = (x - 1)(5x - 4)(x + 1)(x + 2)
Apply the product rule for exponents, if possible. (-9y)(-2y5)
A. 18y6 B. -11y5 C. 9y - 2y5 D. -18y6