Help me please

area of trapezoids

Area of ABCD = 30 cm2

Step-by-step explanation:

We have the formula to calculate the area of a trapezoid as following:

Area of a trapezoid = 1/2 x (Base side 1 + Base side 2) x Height

The two base sides of a trapezoid is parallel.

In the trapezoid ABCD, vector AB and vector DC have the same direction

=> AB and DC are parallel and they are two base sides of the trapezoid.

As BH is perpendicular to DC

=> BH is the height of the trapezoid and BH = 6cm

So that the are of the trapezoid is:

Area of ABCD = 1/2 x (AB + DC) x BH = 1/2 x (4+6) x 6 =30 cm2

it's d.

step-by-step explanation:

because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.

then you would get: -4x - 1y + 2x -6y combine like terms

and get: 2x -7y

hope my answer has you if not then i'm sorry.

associative property hopes this ! : )

step-by-step explanation: