9. Select all the statements that must be true. Select all that apply:
parallelograms have four congruent sides

Both sets of opposite sides of a parallelogram are parallel and congruent

A trapezoid is a parallelogram Diagonals of a parallelogram bisect each other

Diagonals of a parallelogram are congruent​

answer:

3 bags of apples and 2 bags of oranges.

step-by-step explanation:

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2