A triangle has sides with lengths of 8 feet, 15 feet and 18 feet is it a right triangle ?

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?