Let x and y be two supplementary angles, where the measure of x is three times the measure of y. Which system of equations below could be used to find the measure of the two angles? A. x + y = 180
x = y + 3

B. x + y = 180
y = 3x

C. x + y = 180
y = x + 3

D. x + y = 180
x = 3y

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

the answer is b.

step-by-step explanation:

x^3-4x^2+3x-2/x^2+1

step-by-step explanation:

factor the numerator and denominator and cancel the common factors