Answer:the length of the shorter string= 36cm
Step-by-step explanation:
Let us assume the lengths are 2x and 7x since thery are in the ratio of 2 :7
Such that Length of the shorter string = 2x
and the longer string = 7x so that the difference in Length which is 90cm can be expressed as
7x- 2x= 90
5x= 90
x 90/5
x= 18
shorter string = 2 x = 2x 18= 36cm
Longer strring = 7x 18=126cm
Given ,
5<x<10 and 8<y<19
For y-x,
8-5<y-x<19-10
3<y-x<9
Answer:
We have the following function:
And we have to evaluate it when , this means we have to substitute by :
Solving:
Finally:
d
f = 2x + 24/ 3
Step 1: Divide both sides by x.
fx/x = 2/3 x^2 + 8x/x
f = 2x + 24/3