The typical breaking speed of a vehicle is 60 feet per second. A motorcycle on a drag strip is racing at a speed of 100 miles per hour. After reaching the finish line, the rider breaks his motorcycle, slowing down at a constant rate of 120 feet every three seconds. Write an expression to represent the speed of the motorcycle at a given point in time while slowing down after finishing the race. A) 60x + 100

B) -60x+100

C) 40x-100

D) 100-40x

98 points djdjsi zisksis sjsjsi sisksj sksjdj sksks sjsisj

x:       y:  

-1         4

0         4

1         6

2         18

3         20  

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