What is the value of x and the length of segment DE?
1.
=
2. 10x + 15 = 9(9)
2x + 3
x=
Length of DE =
units

Average acceleration: i have no idea how to do this.

Brainliest ! which of the coordinates are not of th vertices of the feasible region for the system of inequalities y≤4,,x≤5,x+y> 6 a(2,4) b(0,6) c(5,4) d(5,1)

If a 36 inch yardstick casts a 21 foot shadow, how tall is a building whose shadow is 168 feet? what is the scale factor