If the measure of < A is 99 ° and the measure of < B is 81 ° , then < A and < B are . Select one:
a. complementary angles
b. adjacent angles
c. vertical angles
d. supplementary angles

D.supplementary angles

Step-by-step explanation:

81+99=180

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.

eve and marks ratios are equivalent

step-by-step explanation: