Acomputer program in shannon’s computer carries out a single mathematical operation in 1.5 × 10-6 seconds. how much time would the program take to complete 2.5 × 103 mathematical operations?

3 3 6, because in every triangle the longer side is always shorter than the sum of the other two

2 equivalent expressions to represent the area of a rectangle and the top is n-3 and the side is 2

area of the rectangle = length * width

given length = n - 3

width = 2

replace it in the area

so area of the rectangle = (n-3) *2

= 2(n-3)

one of the expression is 2(n-3)

to get another expression we distribute 2 inside the parenthesis

2(n-3) is 2n - 6

so another expression is 2n - 6

two equivalent expression are

2(n - 3)   , 2n - 6