Find the area of the parallelogram

28 square units
14 square units
24 square units
48 square units

48 square units

Step-by-step explanation:

to find areas of unusual figures, we divide the section into more easy figures to find its area, in this case we can divide the parallelogram into two triangles, drawing a line from point D to point B

then we will have two triangles whose area is easier to find,let´s see the AB-BD-DA triangle

b= 6 units (from -6 to zero)

h=8 units ( from -4 to 4)

  square units

the area of the triangle DC-CB-BD is the same,

it's the same triangle but turned up,  so we have a  total area

At=24 square units* 2= 48  square units

Have a great day

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.