Can 2.5, the square root of 18 and 5 form a right triangle?

Step-by-step explanation:

if 2.5, sqrt(18), and 5 make up the sides of a right triangle, then they must satisfy A^2+B^2=C^2, where C is the longer side (hypotenuse).

In this case, 5 is the greater of the 3, so let's see if it satisfies our equation:

2.5^2+sqrt(18)^2=5^2

-> 6.25+18 = 24.25 =/= 25

-> Therefore the answer is a resounding no.

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed