Solve the system of equations below by graphing y=2/5x-3 y=-x+4

1350 hats

step-by-step explanation:

divide 900 by 2 to find 50% or half of 900

900/2=450

add 450 to 900

1350

the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5

a = π r² (\frac{x}{360} )

360a =   π r² x

\frac{360a}{\pi r^{2}}   = x

step-by-step explanation: