You have 2 positive numbers. One number is one-fifth of the other number. The difference between the two numbers is 312, find the numbers.

Find the volume of the largest rectangular box in the first octant with three faces in the coordinate planes and one vertex in the plane x + 2y + 3z = 15.

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*