The angles in a triangle have measurements (7x-8), (3x+3), and (18x-11). is this triangle acute obtuse or right

All angles in a triangle sum to 180°, so

(7x - 8) + (3x + 3) + (18x - 11) = 180

28x - 16 = 180

28x = 196

x = 7

(18x - 11) is the clearly largest angle

18(7) - 11 = 115°

115° is an obtuse angle, therefore the triangle is obtuse

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