2 2/5 - 1 1/3 + 3 1/2

Which statement is true 1.the pythagorean theorem can be used to find the missing side of any triangle 2.the pythagorean theorem can be used to find the missing side of any polygon 3. the pythagorean theorem can be used to find the missing side of any right triangle 4.the pythagorean theorem can be used to find the missing side of any isosceles triangle

True or false? a circle could be circumscribed about the quadrilateral below.

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?