What is the value of cos 45 degrees? (answers in picture)

What are the soultion(s) to the quadratic equation 40- x^2=0

What can each term of the equation be multiplied by to eliminate the fractions before solving? x – + 2x = + x 2 6 10 12

Asquare picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. find the area of the mat that will remain uncovered by the picture.