What is the result of subtracting the second equation from the first?
-3x +2y = 7
–3x – 2y = 4

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

Given: m zade = 60° and m2cdf = (3x + 15) prove: x = 15