What is the sum of all of the angles in standard position between 0∘ and 360∘ with a related acute angle of 42∘?

Classify the polygon by its number of sides. state whether the polygon appears to be regular or not regular. a.heptagon, regular b. heptagon, not regular c. octagon, regular d. octagon, not regular

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39