Hi! Does anyone know the answer to this question? I’m bad at geometry and I’m struggling to get the answer. Please help!

Step-by-step explanation:

It is because of Angle-Angle Similarity.

Angle EDC = Angle CAB [Perpendicular, 90°]

Angle ECD = Angle ACB [Vertically Opposite Angles]

So,

Triangle ADC ~ Triangle BAC

Hope it helps :)

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.

215.92 dollars is the answer