Doreen uses 8 yards of fabric to make 2 costumes.

at this rate, how many yards of fabric does she use to make 5 costumes?

enter your answer in the box.

yd

20 yards.

Step-by-step explanation:

We have been given that Doreen uses 8 yards of fabric to make 2 costumes.

Let us find the fabric used to make one costume by dividing 8 by 2.

As Doreen uses 4 yards of fabric to make each costume, let us multiply fabric used to make each costume by 5 to find the fabric needed to make 5 costumes.

Therefore, Doreen will use 20 yards of fabric to make 5 costumes.

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.

its a straight line parallel to the time axis