A7-inch candle burned at the rate od 0.5 inch per hour. write a two variable linear equation that represents the height of the candle, h after x hours

h = 7 – 0.5x  

Step-by-step explanation:

h = mx + b

The height of the candle decreases by 0.5 in/h, so

m = -0.5

y  = -0.5x +b

When x = 0, h = 7.

7 = -0.5×0 + b

7 = 0 + b

b = 7

h = -0.5x + 7 or h = 7 – 0.5x

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step-by-step explanation:

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