Two students solved a problem. One student solved it correctly and one student solved it incorrectly. Determine which student solved the problem correctly. The problem: 53+42
5
3
+
4
2

Tom: 5+5+5×4+4=120
5
+
5
+
5
×
4
+
4
=
120

Maggie: 5×5×5+4×4=141

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e. g. 98.7654). x f(x) 0 1 2 3

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?