Cannot be factored..... I think
Answer:
15x +2=17 so the first thing you want to do is minus 2 then divide by 15 which gives you x=1
Answer: choice A
Step-by-step explanation:
You have to multiply each row by its corresponding column.
For example you multiply 1*5 and put it in the first row and first column(a1b1). you multiply 5*5 and put it in the second row and first column(a2b1) and so on.
when multiplying a 3*1 matrix by a 1*3 matrix you’ll get a 3*3 matrix.
Required area = lb + 2 × h ( l + b)
= 4 × 3 + 2 × 7 (4 + 3)
= 12 + 14 × 7 = 12 + 98 = 110 m²
Cost of white-washing at the rate of $6/m²
= $ 110 × 6 = $ 660