in the figure, ab || cd. find x and y.

x=52,y=137

Step-by-step explanation:

First, find B°

=180°-90°-38°

=52°

Then, find the sum of y-9

y-9=180-52

y-9=128°

Then, find y

y-9°=128°

y=137°

Now, you can find x

x+137°-9°+90°+90°=360°

x=360°-128°-90°-90°

x=37°

a. the residual plot for model 1 has a random pattern and is a good fit for the data.

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.