The ratio of the measures of the angles of a triangle is 6:2:7. Find the measure of the largest angle.

Step-by-step explanation:

6x + 2x + 7x = 180                  Every triangle has a measure of 180o

15x = 180                                 Divide by 15

x = 180/15

x = 12

The longest side will be 7x

7*12 = 84

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )