Solve the system using matrices
{2x−y+3z=5
{−6x+3y−9z =−15
{4x − 2y + 6z = 10

The weight of an object in a particular scale is 175.2 lbs. the measured weight may vary from the actual weight by at most 0.1 lbs. what is the range of actual weights of the object

Aswimming pool measures 22ft by 12ft and is 4ft deep. if the pool is being filled at 2.5 cubic ft per minute, how long will it take to fill the pool?

52 cm radius = diameter = area = circumference = circumfer