Who else is here as there bored

1. what is the measure of ∠abc? what is the measure of ∠abd?

If the value of cos330°is√3/2 then find cos 165°.

Pleting the square f the given find the x-intercepts of the parabola with vertex (-5,13) and y-intercept (0, 12). write your answer in this form: (14,.99). if necessary, round to the nearest hundredth. *- h enter the correct answer, de verter, and ametry 00000 done doo