3. W A. 43 ft B. 40 ft C. 80 ft 80 ft A bungee jumper leaps off a bridge 80 feet above the ground using a 55-foot-long bungee cord. Her height as a function of time is modeled by the following equation: h (1)=60sin (+1)+30 D. 65 ft E. 34 ft 55 ft What is the highest elevation the bungee jumper achieves after the initial descent?

Valencia works as a car salesperson. She made $200,000 in sales one week. Valencia's sales amount increased 1.5% each week for the next 12 weeks. Which equation calculates A, the amount of Valencia's sales after 12 weeks? A = 200,000 - 0.01512 |3D A= 200,000 · 1.01512 A = 200,000 - 121.5 A= 200,000 · 1.1512

The value of a stock in 1950 is $1.40. It's value grows by 8% each year after 1950. a. Write an equation representing the value of the stock V(t), in dollars, t years after 1950  b. What does V(40) represent in this situation? Estimate the value of V(40).

The population of a town is given by the equation P = 3000 (20.1t), where t is the time in years from 2000. Find the population in the following years. (a) 2010 (b) 2030 2040

A ball is kicked upward with an initial velocity of 56 feet per second. The ball's height h (in feet) can be expressed as a function of time t (in seconds) by the equation h = -16t + 56t. How much time does the ball take to reach its highest point? A) 1.75 seconds B) 2.50 seconds C) 2.75 seconds D) 3.50 seconds

An object is launched at 39.2 meters per second (m/s) from a 42.3-meter tall platform. The equation for the object's heights at time t seconds after launch is s(t) = -4.9t + 39.2t + 42.3, where s is in meters. Create a table of values and graph the function. Approximately when will the object hit the ground?

Residents of the town of Maple Grove who are connected to the municipal water supply are billed a fixed amount yearly plus a charge for each cubic foot of water used. A household using 1000 cubic feet was billed $56, while one using 1600 cubic feet was billed $84. (a) What is the charge in dollars per cubic foot? Give an exact answer. 28 600 (b) Write an exact equation for C, the total cost, of a resident's water as a function of w, cubic feet of water used. Use lower case w. 28 600 C(w) = 10+ + w 3 (c) How many cubic feet of water used would lead to a bill of $130? Round your answer to the nearest cubic foot. ft3

Graph the function h (x)=-3x- 2. 8- -8 -6 Check 69 2,411 600 338 O80

A parking garage charges a $5 flat fee, plus an additional $2 per hour. a) Write an equation to describe the total cost (C) as a function of how many hours a customer parks (t). C (t) = b) If Jimmy parks his car in this garage for 7 hours, what is the total cost? Total cost = $ %3D The home prices in a certain area have been increasing at a rate of 2.1% per year for many years. If I buy a house for $263,127 today, how much would my house have been worth 14 years ago? (round to the nearest dollar) (you do not need to include a $ for the unit; I will assume your answer is in dollars) A nuclear reactor produces 64 kg of Uranium-252, which has a half-life of 70 years. How many kg of Uranium will be left after 115 years? (round to the nearest tenth) (you do not need to include a unit. I will assume your answer is in kg) The population of the chumbawamba fish is decreasing at a rate of 4% per year. If

The circulation of a newspaper is increasing at a constant rate. Three months ago the circulation was 4200. Today, it is 6200. Let x represent the number of months after today. a) Express the circulation as a function of time. Try drawing the graph. C(x)= b) What will be the circulation 3 months from now? units. c) When will circulation reach 8867 newspapers?