Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.f(x) = 8x3 - 2x2 + 3x + 6
A. 0 or 2 positive; 1 negative
B. 0 or 1 positive; 0 or 1 negative
C. 0 or 1 positive; 2 negative
D. 0 positive; 1 or 2 negative
Answer: A
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If exactly 400 people sign up for a charter flight, Leisure World Travel Agency charges $700/person. However, if more than 400 people sign up for the flight (assume this is the case), then each fare is reduced by $1 for each additional person. ? Determine how many passengers will result in a maximum revenue for the travel agency. What is the maximum revenue? What would be the fare per passenger in this case? ? Hint: Let x denote the number of passengers above 400. Show that the revenue function R is given by R(x) = (400 + x)(700 - x). ?
A. 550; $301,500; $550 B. 550; $302,500; $550 C. 500; $301,500; $500 D. 500; $302,500; $500
Simplify the expression.30 - 6.2 × 3.7
A. 103.60 B. 163.06 C. 7.06 D. 20.1
Multiply.(8x4)(-2x7)
A. -16x11 B. -16x28 C. 16x28 D. 16x11
Identify the solution of the equation 52 = n + 4 .
A) n = 46 B) n = 49 C) n = 48 D) n = 0 E) n = 38