how to calculate the area of the trapezoid A(2.0cm),B(2.4cm),C(3.6cm),D(1.8cm) what to start first and what to do??

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

1/4 because there is 4 grades.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3