Select all the correct locations on the table. Select all the expressions with accurately written descriptions
8(2y + 6)2
8 times the square of the sum of 2 times y
and 6
269 + 3)(x - 2)
2 times the product of the sum of 9 and x and
the difference of x and 7
(51 - 3)2
the square of the difference of 5 times x and 3
the square of the product of 7 and x
y2 + 3y - 4
the sum of y squared and three times y minus 4
5(8x2 + 202 + 8)
the product of 5 and 8 plus the square of x
plus the sum of 20x and 8
um. All rights reserved.

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

7

step-by-step explanation:

the answer would be 7

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°