What is the value of angle a in the figure below?

a = 77 degrees

Step-by-step explanation:

Angles on a straight line equal 180

To find the measure of a, the measure of 2x + 7 has to be found first

Vertical angles are congruent

2x + 7 = x + 29

-x           -x

x + 7 = 29

  -7       -7

x = 22

2x + 7

2(22) + 7

51

51 + a + 52 = 180

103 + a = 180

-103          -103

a = 77

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

answer: i ! the answer is   9000 seconds, also d

hope i

-lavira : )