The sum of 2 interior angles of a triangle is 140°. what is the measure of the third interior angle? a. 220° b. 40° c. 30° or d. 50°?

the 3 interior angles of a triangle need to = 180

so 180-140 = 40

 the 3rd angle is 40 degrees

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute: