8. Ms. Lisa teaches three sections of Algebra 2 with 80 students total. The mean score for the last test was 78.
Which of the following is not true.
A. The average score on the last test for Ms. Lisa's students was 78
B. Every student scored a 78 on the last test.
C. If every student scores a 78 on the last test, then the total score on the test would be the same as the
actual total score on the test
D. All of the above are true

add an image !

step-by-step explanation:

b

step-by-step explanation:

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.