If (x+y)^2 =42 and (x^2+y^2)=12, find the value of 2xy
Help me pls

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

The only way to identify an intercept is as an ordered pair. true false

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?