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Births and Deaths From 2008 to 2012, the total numbers of births B (in thousands) and deaths D (in thousands) in the United States can be approximated by the models
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- Data were collected from several hospitals about the charge for medical procedures and the popularity of the procedures. The results were used to calculate the model ŷ = -58.25x + 927, where x represents the cost of the procedure in thousands of dollars and ŷ represents the predicted number of procedures performed. Using the model, how much would a procedure cost that is predicted to be performed 400 times? $223,730 ○ $90,472 O $22,373 $9,047arrow_forwardThe running time (in minutes) of a tv show is 30 - 0.5c, where c is the number of commercials aired during the episode. What is the running time of an episode with 15 commercials?arrow_forwardValencia 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 · 1.1512arrow_forward
- Show C1=B1arrow_forwardRashawn read 25 pages of his book each day until he finished the book. His book was 400 pages long. Which sketch represents this situation? (0, 400) (0. 16) (400, 0) (16, 0) Days Days 10. 400) 0.25 (400. 0) (25, 0) Pages remaining Pages remaining Pages remainingarrow_forwarda x (3 x 6) = 400arrow_forward
- On a day at the beginning of the winter the temperature is 5 degrees below zero. The next day the temperature rose 8 1/2 degrees. What is the temperature that day?arrow_forwardThe height y, in feet, of a baseball t seconds after being thrown upward can be approximated by y = −16t2 + 64t + 4. How many seconds after the ball is released is it 20 feet above the ground? Round to the nearest tenth of a second. (See Example 4 in this section.) The ball will first be 20 feet above the ground after ? seconds (on its way up), and again after ? seconds (on its way down).arrow_forwardThe demand for a product, in dollars, is p = 1200 − 0.2x − 0.0001x2 . Find the consumer surplus when the saleslevels is 500.arrow_forward
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