Marco wants to cut a sheet of plywood to fit over the top of his triangular sandbox. one angel measures 38degrees and it is between side with lengths 14 feet and 18 feet .what is the length of the third side

The length of the third side is 11.08 feet

Step-by-step explanation:

Please kindly check the attached file for explanation

2

step-by-step explanation:

1+1=2

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.