Complete the square to solve the equation below. x^2+8x-5=15
a. x=2
b. x= -10
c. x=-3
d. x=-2

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.

How would you find the height of points on the circle? the topic is trigonometry.