If a rectangle has a width of 36 inches and it’s diagonal is 60 inches what is the length of the rectangle

Since a rectangle is 2 triangles put together then just use the pythoragean therom to find the length of the rectange.a^2+b^2=c^2 60=c, b=36
a^2+36^2=60^2
a^2+1296=3600
a^2+1296-1296=3600-1296
a^2=2304
sq root of a^2=sq root of 2304
a=48

the missing length of the triangle is 48in

I) { 1,2,3,5,7,9}

II) { 3,5,7}

III) { 2}

Step-by-step explanation:

n(U)= -1<=X-2 <= 7

= -1+2<= X-2+2<= 7+2

= 1<= X<= 9

n(U)= { 1,2,3,4,5,6,7,8,9}