In a survey of 2035 workers, 73% reported working out of three or more days a week. What is the margin of error? What is the interval that is likely to contain the exact percent of all people who workout three or more days a week?

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3