Which of the following is a solution of x2 − 8x = –27?
negative 4 minus i square root of 11
4 plus i square root of 11
negative 4 minus i square root of 44
4 plus i square root of 44

If the measure of xyz is 81 what is the measure of yz

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0