A Texas House representative proposed placing solar panels on all public schools to increase green energy and reduce energy costs for districts. Suppose a manufacturer’s panels will be purchased only if real-world results of the proposed panels have an average efficiency rating greater than 18%. A random selection of 32 panels result in a mean efficiency rating of 0.182 with a standard deviation of 0.006. Based on a 95% confidence interval, should the panels be purchased?

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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

only 10/60 isn't equivalent

hope this : )

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²