Which of the following statements about iron filling placed upon glass resting on top of a bar magnet is false

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles