3. (a) Write crammers rule for three equations in three variables. (b) Show difference between exponential and logarithmic functions. (c) Walton company determines that its monthly sales 'D' is related to its advertising budget y by the function D(x)= 8000 log10(3x + 1) + 7000, where x is in thousands of dollars. Find the monthly sales for the following advertising budgets: (1) $0 (2) $2000 (3) $10
3. (a) Write crammers rule for three equations in three variables. (b) Show difference between exponential and logarithmic functions. (c) Walton company determines that its monthly sales 'D' is related to its advertising budget y by the function D(x)= 8000 log10(3x + 1) + 7000, where x is in thousands of dollars. Find the monthly sales for the following advertising budgets: (1) $0 (2) $2000 (3) $10
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter6: Vector Spaces
Section6.7: Applications
Problem 14EQ
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