Solve 7y^2+ 21 = 77, where Y is a real number. Round your answer to the nearest hundredth.​

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

1- how are translations represented as a function? . . 2- what is the relationship between a translation and a rigid motion? answer my grade depends on it! you so much

How many significant figures are there in the number 10.76?