Solve the problem.Suppose that P(x) represents the percentage of income spent on food in year x and I(x) represents income in year x. Determine a function F that represents total food expenditures in year x.
A. F(x) = (P ? I)(x)
B. F(x) = (P + I)(x)
C. F(x) = 
(x)
D. F(x) = (I - P)(x)
Answer: A
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Find the conditional probability.If two cards are drawn at random without replacement from a standard deck, find the probability that the second card is red, given that the first card was a heart.
A. 
B. 
C. 
D. 
In the circuit below, R1 = 3.3 Kê, R2 = 5.6 Kê, R3 = 4.7 Kê, and C = 846 pF. What is IC of an equivalent Norton circuit when f = fCO?
a. 4.5 mA
b. 10.7 mA
c. 1.9 mA
d. 2.7 mA
e. 1.8 mA
Solve the problem. Round your answer to the nearest tenth.A person is pulling a freight cart with a force of 49 pounds. How much work is done in moving the cart 30 feet if the cart's handle makes an angle of 34° with the ground?
A. 1218.7 ft-lb B. 82.2 ft-lb C. 822.0 ft-lb D. 1285.7 ft-lb
Find the present value of $54,049 due in 5 year(s) at an interest rate of 7% / year compounded continuously. Round your answer to the nearest integer. ?
A. $38,536 B. $38,089 C. $38,088 D. $38,316