When consumers purchase cell phones, they also often purchase a protective case to take care of the cell phone. as the price of a cell phone rises, the demand for a protective case shifts to the left. this means cell phones and a protective case are choose one:
a. substitutes
b. inferior goods
c. complements
d. normal goods

Technology corp. is considering a $238,160 investment in a new marketing campaign that it anticipates will provide annual cash flows of $52,000 for the next five years. the firm has a 6% cost of capital. what should the analysis indicate to the firm's managers?

One question from a survey was "how many credit cards do you currently have? " the results of the survey are provided. complete parts (a) through (g) below. click the icon to view the survey results. (a) determine the mean number of credit cards based on the raw data. the mean is 3.113.11 credit cards. (type an integer or a decimal. do not round.) (b) determine the standard deviation number of credit cards based on the raw data. the standard deviation is 1.9111.911 credit cards. (round to three decimal places as needed.) (c) determine a probability distribution for the random variable, x, the number of credit cards issued to an individual. x (# of cards) p(x) x (# of cards) p(x) 1 0.280.28 6 nothing 2 nothing 7 nothing 3 nothing 8 nothing 4 nothing 9 nothing 5 nothing 10 nothing (type integers or decimals. do not round.)

Question 6 of 102 pointswhich situation shows a constant rate of change? oa. the number of tickets sold compared with the number of minutesbefore a football gameob. the height of a bird over timeoc. the cost of a bunch of grapes compared with its weightod. the outside temperature compared with the time of day