A researcher creates a scatter plot that displays the relationship between the number of years in business, x, and the percentage of company business that is fair trade, y. The researcher creates a line of best fit, y=0.091x+0.060, and wants to find the residuals for the companies that have been in business for 3 years. Find the residuals for the two points representing companies that have been in business for 3 years, (3, 0.42) and (3, 0.3). What is the residual for the company with the point (3, 0.42)?

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solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b

any options?

step-by-step explanation:

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6: 4= 3/2

18: 8= 9/4

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