25 pts easy definitions adjacent angles congruent angles complementary angles vertical angles perpendicular lines supplementary angles

Hello There!

"Adjacent Angles" Adjacent angles are adjacent when they have a common side and a common vertex. Adjacent angles do not overlap.

"Congruent Angles" They have the same angle in degrees or radian.

"Complementary Angles" These are angles that add up to 90 degrees.

"Vertical Angles" Angles that are opposite of each-other. These are formed by intersecting lines.

"Perpendicular Lines" Lines that are at right angles (90°) to each other.

"Supplementary Angles" Two angles that add up to 180 degrees.

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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.

i belive those are the ones that are under 90 degreese.