Nia and Marie were both asked to find the perimeter of a rectangle with side length x and width 3y. The expressions each scholar wrote are shown below. Nia: x + 3y + x + 3y Marie: 4x + 4y Are the expressions equivalent for a rectangle of any size?

Explain how you know, then use substitution to prove it.​

Module 10 coordinate proof using slope and distance answers is quadrilateral abcd a parallelogram? explain how you know.

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Julian wrote the following numeric pattern on the board3,10,17,24,31,38.what numbers of julian's pattern are compound numbers.