A submarine is cruising at 25m below sea level. It descends 15m. What is the new depth?

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0