The point of concurrency of the angle bisectors of a triangle is called the a) centroid. b) orthocenter. c) circumcenter. d) incenter.

Me, the vertices of quadrilateral coat are c(2,0), o(7,0), a(7,2) and t(2,2). prove that coat is a rectangle.

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.

Find the length of the radius of a circle with the center at -7+2i and a point in the circle at 33+11i