Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN: 9780321964038
Author: GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher: Pearson Addison Wesley,
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Chapter 10.3, Problem 52E

Shoe Sales Sal’sShoes and Fred's Footwear both have outlets in California and Arizona. Sal's sells shoes for $ 80 , sandals for $ 40 . and boots for $ 120 . Fred's prices arc $ 60 , $ 30 and $ 150 for shoes, sandals, and boots, respectively. Half of all sales in California stores are shoes. 1 / 4 are sandals. and 1 / 4 are boots. In Arizona the fractions arc 1 / 5 shoes. 1 / 5 sandals, and 3 / 5 boots.

a. Write a 2 × 3 matrix called P representing prices for the two stores and three types of footwear.

b. Write a 3 × 2 matrix called F representing the fraction of each type of footwear sold in each state.

c. Only one of the two products PF and FP is meaningful. Determine which one it is, calculate the product, and describe what the entries represent.

d. From your answer to part c, what is the average price for a pair of footwear at an outlet of Fred's in Arizona?

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Chapter 10 Solutions

Calculus For The Life Sciences

Ch. 10.1 - Prob. 8ECh. 10.1 - _ on a matrix correspond to transformations of a...Ch. 10.1 - Describe in your own words what 2R1+R3R3 means.Ch. 10.1 - Prob. 11ECh. 10.1 - Prob. 12ECh. 10.1 - Prob. 13ECh. 10.1 - Prob. 14ECh. 10.1 - Prob. 15ECh. 10.1 - Prob. 16ECh. 10.1 - Use the Gauss-Jordan method to solve each system...Ch. 10.1 - Prob. 18ECh. 10.1 - Use the Gauss-Jordan method to solve each system...Ch. 10.1 - Prob. 20ECh. 10.1 - Use the Gauss-Jordan method to solve each system...Ch. 10.1 - Prob. 22ECh. 10.1 - Use the Gauss-Jordan method to solve each system...Ch. 10.1 - Prob. 24ECh. 10.1 - Use the Gauss-Jordan method to solve each system...Ch. 10.1 - Prob. 26ECh. 10.1 - Prob. 27ECh. 10.1 - Use the Gauss-Jordan method to solve each system...Ch. 10.1 - Prob. 29ECh. 10.1 - Prob. 30ECh. 10.1 - Prob. 31ECh. 10.1 - Prob. 32ECh. 10.1 - Prob. 33ECh. 10.1 - Prob. 34ECh. 10.1 - Prob. 35ECh. 10.1 - Prob. 36ECh. 10.1 - Prob. 37ECh. 10.1 - Prob. 38ECh. 10.1 - Prob. 39ECh. 10.1 - Prob. 40ECh. 10.1 - Prob. 41ECh. 10.1 - Prob. 42ECh. 10.1 - On National Public Radio, the "Weekend Edition"...Ch. 10.1 - Prob. 44ECh. 10.1 - Prob. 45ECh. 10.1 - Prob. 46ECh. 10.1 - Prob. 47ECh. 10.1 - Mixing Plant Foods Natural brand plant food is...Ch. 10.1 - 10.1 Exercises Surveys The president of Sams...Ch. 10.1 - Prob. 56ECh. 10.1 - Prob. 61ECh. 10.1 - Prob. 62ECh. 10.1 - Prob. 63ECh. 10.1 - Prob. 64ECh. 10.1 - Prob. 68ECh. 10.2 - YOUR TURN Find each sum, if possible. a...Ch. 10.2 - Prob. 2YTCh. 10.2 - Decide whether each statement is true or false. If...Ch. 10.2 - Decide whether each statement is true or false. If...Ch. 10.2 - Decide whether each statement is true or false. If...Ch. 10.2 - Decide whether each statement is true or false. If...Ch. 10.2 - Prob. 5ECh. 10.2 - Prob. 6ECh. 10.2 - EXERCISES Find the size of each matrix. Identify...Ch. 10.2 - Prob. 8ECh. 10.2 - Prob. 9ECh. 10.2 - Prob. 10ECh. 10.2 - Find the size of each matrix. Identify any square,...Ch. 10.2 - Prob. 12ECh. 10.2 - Prob. 13ECh. 10.2 - Prob. 14ECh. 10.2 - Prob. 15ECh. 10.2 - Prob. 16ECh. 10.2 - Prob. 17ECh. 10.2 - Prob. 18ECh. 10.2 - Prob. 19ECh. 10.2 - Prob. 20ECh. 10.2 - Prob. 21ECh. 10.2 - Prob. 22ECh. 10.2 - Prob. 23ECh. 10.2 - Prob. 24ECh. 10.2 - Prob. 25ECh. 10.2 - Prob. 26ECh. 10.2 - Perform the indicated operations, where possible....Ch. 10.2 - Prob. 28ECh. 10.2 - Perform the indicated operations, where possible....Ch. 10.2 - Prob. 30ECh. 10.2 - Prob. 31ECh. 10.2 - Prob. 32ECh. 10.2 - For matrices X=[xyzw] and 0=[0000], find the...Ch. 10.2 - Prob. 34ECh. 10.2 - Prob. 35ECh. 10.2 - Prob. 36ECh. 10.2 - Prob. 37ECh. 10.2 - Prob. 39ECh. 10.2 - Prob. 40ECh. 10.2 - Prob. 42ECh. 10.2 - Prob. 43ECh. 10.2 - OTHER APPLICATIONS Car Accidents The tables in the...Ch. 10.2 - Prob. 48ECh. 10.2 - Prob. 49ECh. 10.3 - YOUR TURN Calculate the product AB where A=[3412]...Ch. 10.3 - Prob. 2YTCh. 10.3 - Let A=[-2403]and B=[-6240]. Find each value. 2ACh. 10.3 - Prob. 2ECh. 10.3 - Prob. 3ECh. 10.3 - Prob. 4ECh. 10.3 - Prob. 5ECh. 10.3 - Prob. 6ECh. 10.3 - Prob. 7ECh. 10.3 - Prob. 8ECh. 10.3 - Prob. 9ECh. 10.3 - Prob. 10ECh. 10.3 - Prob. 11ECh. 10.3 - Prob. 12ECh. 10.3 - To find the product matrix AB. the number of...Ch. 10.3 - Prob. 14ECh. 10.3 - Prob. 15ECh. 10.3 - Prob. 16ECh. 10.3 - Prob. 17ECh. 10.3 - Prob. 18ECh. 10.3 - Prob. 19ECh. 10.3 - Prob. 20ECh. 10.3 - Prob. 21ECh. 10.3 - Prob. 22ECh. 10.3 - Prob. 23ECh. 10.3 - Prob. 24ECh. 10.3 - Prob. 25ECh. 10.3 - Prob. 26ECh. 10.3 - Prob. 27ECh. 10.3 - Prob. 28ECh. 10.3 - EXERCISES Find each matrix product, if possible....Ch. 10.3 - EXERCISES Find each matrix product, if possible....Ch. 10.3 - EXERCISES Let A=[2413] and B=[2136] a. Find AB. b....Ch. 10.3 - Given matrices P=[mnpq], X=[xyzw], and T=[rstu],...Ch. 10.3 - Prob. 34ECh. 10.3 - Prob. 35ECh. 10.3 - Prob. 36ECh. 10.3 - Show that the system of linear equations...Ch. 10.3 - Let A=[1235], X=[x1x2] and B=[412], Show that the...Ch. 10.3 - Use a computer or graphing calculator and the...Ch. 10.3 - Prob. 40ECh. 10.3 - Prob. 41ECh. 10.3 - Prob. 42ECh. 10.3 - LIFE SCIENCE APPLICATIONS Dietetics In Exercise 39...Ch. 10.3 - Prob. 44ECh. 10.3 - Prob. 45ECh. 10.3 - Prob. 46ECh. 10.3 - Prob. 48ECh. 10.3 - Prob. 49ECh. 10.3 - Prob. 50ECh. 10.3 - Prob. 51ECh. 10.3 - Shoe Sales SalsShoes and Freds Footwear both have...Ch. 10.4 - YOUR TURN Use the inverse of the coefficient...Ch. 10.4 - EXERCISES Decide whether the given matrices are...Ch. 10.4 - Prob. 2ECh. 10.4 - Prob. 3ECh. 10.4 - Prob. 4ECh. 10.4 - Prob. 5ECh. 10.4 - Prob. 6ECh. 10.4 - Prob. 7ECh. 10.4 - Prob. 8ECh. 10.4 - Prob. 9ECh. 10.4 - Prob. 11ECh. 10.4 - Prob. 12ECh. 10.4 - Prob. 13ECh. 10.4 - Find the inverse, if it exists, for each matrix....Ch. 10.4 - Prob. 15ECh. 10.4 - Prob. 16ECh. 10.4 - Find the inverse, if it exists, for each matrix....Ch. 10.4 - Prob. 18ECh. 10.4 - Prob. 19ECh. 10.4 - Prob. 20ECh. 10.4 - Prob. 21ECh. 10.4 - Prob. 22ECh. 10.4 - Prob. 23ECh. 10.4 - Prob. 24ECh. 10.4 - Prob. 25ECh. 10.4 - Prob. 26ECh. 10.4 - Solve each system of equations by using the...Ch. 10.4 - Prob. 28ECh. 10.4 - Prob. 29ECh. 10.4 - Solve each system of equations by using the...Ch. 10.4 - Solve each system of equations by using the...Ch. 10.4 - Prob. 32ECh. 10.4 - Prob. 35ECh. 10.4 - Prob. 36ECh. 10.4 - Prob. 37ECh. 10.4 - Prob. 38ECh. 10.4 - Prob. 39ECh. 10.4 - Prob. 40ECh. 10.4 - Prob. 41ECh. 10.4 - Prob. 42ECh. 10.4 - Let A=[abcd]and 0=[0000]in Exercises 43-48. Show...Ch. 10.4 - Let A=[abcd]and 0=[0000]in Exercises 43-48. Show...Ch. 10.4 - Prob. 45ECh. 10.4 - Prob. 46ECh. 10.4 - Prob. 47ECh. 10.4 - Prob. 48ECh. 10.4 - Prob. 49ECh. 10.4 - Prob. 50ECh. 10.4 - Prob. 59ECh. 10.4 - Prob. 60ECh. 10.4 - Prob. 61ECh. 10.4 - Prob. 62ECh. 10.4 - Prob. 63ECh. 10.4 - Prob. 64ECh. 10.4 - Prob. 65ECh. 10.4 - Prob. 66ECh. 10.4 - Prob. 67ECh. 10.5 - Find the determinant of the following matrices....Ch. 10.5 - Find the determinant of the following matrices....Ch. 10.5 - Prob. 3ECh. 10.5 - Prob. 4ECh. 10.5 - For Exercises 512, find the eigenvalues and their...Ch. 10.5 - Prob. 6ECh. 10.5 - For Exercises 512, find the eigenvalues and their...Ch. 10.5 - Prob. 8ECh. 10.5 - For Exercises 512, find the eigenvalues and their...Ch. 10.5 - For Exercises 512, find the eigenvalues and their...Ch. 10.5 - Prob. 11ECh. 10.5 - Prob. 12ECh. 10.5 - Prob. 13ECh. 10.5 - In exercise 14 and 15, each 22matrix has only one...Ch. 10.5 - Prob. 15ECh. 10.5 - Prob. 16ECh. 10.5 - In Exercises 16 and 17, each matrix has complex...Ch. 10.5 - Prob. 18ECh. 10.5 - Leslie Matrices For each of the following Leslie...Ch. 10.5 - Leslie Matrices For each of the following Leslie...Ch. 10.5 - Leslie Matrices For each of the following Leslie...Ch. 10.5 - Leslie Matrices For each of the following Leslie...Ch. 10.5 - Prob. 23ECh. 10.5 - Prob. 26ECh. 10.CR - Prob. 1CRCh. 10.CR - Prob. 2CRCh. 10.CR - Prob. 3CRCh. 10.CR - Prob. 4CRCh. 10.CR - Prob. 5CRCh. 10.CR - Prob. 6CRCh. 10.CR - Prob. 7CRCh. 10.CR - Prob. 8CRCh. 10.CR - Prob. 9CRCh. 10.CR - Prob. 10CRCh. 10.CR - Prob. 11CRCh. 10.CR - Prob. 12CRCh. 10.CR - Prob. 13CRCh. 10.CR - Prob. 14CRCh. 10.CR - Prob. 15CRCh. 10.CR - Prob. 16CRCh. 10.CR - Prob. 17CRCh. 10.CR - Prob. 18CRCh. 10.CR - Prob. 19CRCh. 10.CR - Prob. 20CRCh. 10.CR - Prob. 21CRCh. 10.CR - Prob. 22CRCh. 10.CR - Prob. 23CRCh. 10.CR - Prob. 24CRCh. 10.CR - Prob. 25CRCh. 10.CR - Prob. 26CRCh. 10.CR - Prob. 27CRCh. 10.CR - Prob. 28CRCh. 10.CR - Prob. 29CRCh. 10.CR - Prob. 30CRCh. 10.CR - Prob. 31CRCh. 10.CR - Prob. 32CRCh. 10.CR - Prob. 33CRCh. 10.CR - Prob. 34CRCh. 10.CR - Prob. 35CRCh. 10.CR - Prob. 36CRCh. 10.CR - Prob. 37CRCh. 10.CR - Prob. 38CRCh. 10.CR - Prob. 39CRCh. 10.CR - Prob. 40CRCh. 10.CR - Prob. 41CRCh. 10.CR - Prob. 42CRCh. 10.CR - Prob. 43CRCh. 10.CR - Prob. 44CRCh. 10.CR - Prob. 45CRCh. 10.CR - Prob. 46CRCh. 10.CR - Prob. 47CRCh. 10.CR - Prob. 48CRCh. 10.CR - Prob. 49CRCh. 10.CR - Prob. 50CRCh. 10.CR - Prob. 51CRCh. 10.CR - Prob. 52CRCh. 10.CR - Prob. 53CRCh. 10.CR - Prob. 54CRCh. 10.CR - Prob. 55CRCh. 10.CR - Prob. 56CRCh. 10.CR - Prob. 57CRCh. 10.CR - Prob. 58CRCh. 10.CR - Prob. 59CRCh. 10.CR - Prob. 60CRCh. 10.CR - Prob. 61CRCh. 10.CR - Prob. 62CRCh. 10.CR - Prob. 63CRCh. 10.CR - Prob. 70CRCh. 10.CR - Prob. 71CRCh. 10.CR - Prob. 78CRCh. 10.CR - Prob. 79CRCh. 10.CR - Baseball In the 2009 Major league Baseball season,...Ch. 10.CR - Prob. 81CRCh. 10.EA - Find the second-order contact matrix PQ mentioned...Ch. 10.EA - Prob. 2EACh. 10.EA - Prob. 3EACh. 10.EA - Prob. 4EA
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