Solve the problem.The demand for a certain type of modem is given by p = 490 - xwhere p is the price when x units are demanded. Determine the price that will produce the maximum revenue. (Hint: First find the revenue R(x), that would be obtained at a demand of x).
A. $265
B. $490
C. $245
D. $49
Answer: C
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Use Euler's method with the specified step size to estimate the value of the solution at the given point x*. Find the value of the exact solution at x*.y' = 2y2/
, y(1) = -1, dx = 0.5, x* = 5
A. Euler's method gives y ? 0.0821; the exact solution is -0.1601 B. Euler's method gives y ? -0.1482; the exact solution is -0.2224 C. Euler's method gives y ? -0.1949; the exact solution is -0.2594 D. Euler's method gives y ? -0.0879; the exact solution is -0.1893
Find the limit.
x
A. 0 B. 1 C. ? D. 4
Perform the indicated operation.15.875 - 8.719
A. 7.256 B. 7.156 C. 7.356 D. 24.594
Find the expected value.Suppose that 1,000 tickets are sold for a raffle that has the following prizes: one $300 prize, two $100 prizes, and one hundred $1 prizes. What is expected value of a ticket?
A. $300 B. $0.60 C. $1 D. $100