Point y is the midpoint of segment xz. if xy = 2(3x +1) and yz = 5x – 22, find the value of x.

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

What is the circumference of a circle with an area of 50.24 cm²?

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.