Algebra and Trigonometry (6th Edition)
6th Edition
ISBN: 9780134463216
Author: Robert F. Blitzer
Publisher: PEARSON
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When will p(t)=295et-4- 710 have a function value of 900? Round your answer to the nearest ten thousandth
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- NASA launches a rocket at �=0 seconds. Suppose its height, in meters above sea-level, as a function of time is given by ℎ=-4.9�2+232�+290.How high above sea-level does the rocket get at its peak? Round your answer to 2 decimal places.The rocket peaks at meters above sea-level.arrow_forwardb. The temperature (in degrees Fahrenheit) can be approximated by the function c(x) = = + 40, where 4 x is the number of cricket chirps in 1 minute. What is the temperature for 60 chirps per minute? 100 chirps per minute? Use function notation to express these values. The temperature for 60 chirps per minute is c(I degrees Fahrenheit. %3D The temperature for 100 chirps per minute is c( degrees Fahrenheit.arrow_forwardThe volume, QQ, of a sound is inversely proportional to the square of the distance nn, in meters, from the source of the sound. A sound is heard at 7272 decibels at a distance of 1010 meters from its source. Write a formula for QQ as a function of nn, including finding the value of any unknown constants.arrow_forward
- How do you use a formula to express a record time (63.2 seconds) as a function since 1950? (t=time in years since 1950 and R = record time in seconds. The record time decreases every year by 0.4 seconds).arrow_forwardYou purchased a car for $30 000. It depreciates by 25% of its current value every year. a) Write a function that can be used to model the value of the car after x years. b) How much will the car be worth 3 years after it is purchased? c) How long would it take for the car to depreciate to a value of $20 000?arrow_forwardThe worldwide sales in millions of hand-held PCs can be modeled by the function P(x) 1.85(x 1998) + 4 where x is the year. Use the function to determine the year when sales reach $25 million.arrow_forward
- The number of pet dogs in the United States can be represented as p(t) million where t is the number of years since 2003.† (a) Write a sentence of interpretation for p(0) = 65.2. In the year , there were million pet dogs in the United States. (b) Write the function notation for the statement "There were 66.9 million pet dogs in the United States in 2009." p( )= ?arrow_forwardIn 2000, the value of a home is 150,000.00 dollars. Its value has been increasing 5% per year. If this rate continues indefinitely, write an equation, in function notation, to represent the value of the home as a function of time, t, in years since 2000arrow_forwardA cashier earns $7 an hour. If x is the number of hours worked, which function represents the cashier’s earnings?arrow_forward
- The function A = Age -0.00693x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 400 pounds of the material are placed in the vault, how much time will need to pass for only 115 pounds to remain? Round to nearest whole number. O A. 190 years O B. 360 years O C. 185 years O D. 180 yearsarrow_forwardInterpret the meaning of the function notation d(0)=1000arrow_forwardWhat is the value of the constant "k" for this function?arrow_forward
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