What is the image of the point (8,-6)(8,−6) after a rotation of 180 counterclockwise about the origin?

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

What is the number 321,000,000 in scientific notation? also what is the number? ?

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle