hw11-4 - (b) When does this happen? 5. The price of a...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Math 170-007 Homework 11/4 Fall 2010 1. The temperature, T , of an object is a function of time, x , as shown in the table below. x (minutes) 0 5 10 15 20 25 T ( C) 12 15 19 14 13 10 (a) What is the warmest the object gets? (b) When does this happen? (c) What is the coolest the object gets? (d) When does this happen? 2. The number of critters in a certain population is a function of time as graphed below. The time axis is measured in days. Critters are measured in “critters”. (a) What is the smallest population during this time span? (b) When does it occur?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
3. The height of a projectile is given by h ( t ) = 23 t - 4 . 9 t 2 meters, for 1 t 4 seconds. (a) What is the greatest height attained by the projectile? (b) When does this happen? (c) What is the lowest height? (d) When does it happen? 4. The height of a projectile is given by h ( t ) = (50 - 10 t ) 10 t - t 2 feet for 0 t 5 seconds. (a) What is the greatest height attained by the projectile?
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: (b) When does this happen? 5. The price of a certain commodity is given by P ( t ) = 50-115 t t + 10 dollars per ton, with 0 t 3 weeks. (a) What is the lowest price of the commodity? (b) What if the domain is 0 t 4 weeks? 6. The price of a certain commodity is given by P ( t ) = 50-115 t t 2 + 10 dollars per ton, with t 3 weeks. (a) What is the lowest price of the commodity? (b) What if the domain is 0 t 4 weeks? 7. From the Online Textbook, Section 6.1: Problems 2, 4, 7, 10, 12, 14, 19. Hints and Answers 1. a)19 C; b) 15 min; c)10 C; b) 25 min. 2. Approximately: a) 37 critters; b) 506 days. 3. a)27.0 m; b) 2.35 s; c) 13.6 m; d) 4 s. 4. a)125 ft; b) 5-5 / 2 1 . 46 s. 5. a) $23.46 per ton; b) $17.14 per ton. 6. a) $31.84 per ton; b) $31.82 per ton....
View Full Document

Page1 / 2

hw11-4 - (b) When does this happen? 5. The price of a...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online