..... .... .............. ............... The values y (in billions of dollars) of U.S. currency in circulation in the years 2000 through 2007 can be modeled by y = -451 + 444 In t, 10 sts 17, where t represents the year, witht = 10 corresponding to 2000.t During which year did the value of U.S. currency in circulation exceed $800 billion?

The Western community is composed of students, staff, and faculty. Students make up 55% of the Western community, staff make up 20%, and the rest are faculty. This past year 30% of students opted to get vaccinated for influenza, compared to 20% of staff and 90% of faculty. Based on this information what fraction of the Western community was vaccinated for influenza? Number (give at least five decimal places).

Using excel, guess the temperature of the earth in 2050 from the data below Year temperature (°C) 1880 -0.161881…

Complete the following table and draw a graph showing how bond price for each bond changes over time as they move towards their maturity dates. Describe the relationship between bond prices and time remaining for maturity. Using the table below show all the calculations for every bond prices calculated  Years remaining to maturity BOND A Coupon rate = 8% p.a. Market interest rate = 6% p.a. BOND B Coupon rate = 6% p.a. Market interest rate = 6% p.a. BOND C Coupon rate = 4% p.a. Market interest rate = 6% p.a. 10       9       8       7       6       5       4       3       2       1       0

A certain city's power company charges their residents for electricity usage on a daily basis. There is a basic charge of 11.57 cents. For each day the first 10 kWh cost 4.81 cents per kWh and any additional kWhs are 9.69 per kWh. (A kWh, or kilowatt-hour, is a unit of energy.) (a) Complete the following table using the information provided above. kWhkWh 0 5 10 15 20 cost (dollars)cost (dollars)           kWhkWh 25 30 35 40 cost (dollars)cost (dollars)         (b) We can define a piecewise function f(x)f(x) where xx is the kWh used in a day and f(x)f(x) is the cost, in dollars. This function would have the form   f(x)={g(x)h(x)ififx∈Ax∈Bf(x)={g(x)ifx∈Ah(x)ifx∈B What functions g(x)g(x) and h(x)h(x) make up the piecewise function f(x)f(x)? g(x)=g(x)= for A = h(x)=h(x)= for B = Hint: A and B are intervals. If an interval uses ±∞±∞ write inf or -inf . (c) Using the above function, what is the cost of 26 kWh? dollars. (d) For 3 dollars, what is the maximum kWh usage for one…

A. By how much does the machine decrease in value (in dollars) in 1 year? B. Predict when (in years) the value of the copy machine will be zero.

Question 23 During a month's time, an automobile salesperson receives a 6% commission on the first $5000 in sales, a 7% commission on the next $5000 sales, 8% commission on anything over $10,000. What is her commission for $36000 in sales?

8–33. On Black Friday, Amazon.com featured an Echo 2nd Generation for $35 normally selling for $79. Calculate the dollar markdown and the markdown percent based on the selling price to the nearest whole percent.

Each spin costs $2. If the spinner lands on C the player wins a dime, if the spinner stops on A the player wins $9 otherwise the player wins nothing. Calculate the players expected winnings. Express your answer to at least three decimal places in dollar form.. Answer: $ 3/11 A 4/11 B D C 2/11 2/11

Determine the two values of such that the middle 95% of the data lie between the two -values. Round the solutions to two decimal places, as -values are traditionally rounded. The middle 95% of the data lie between