Which expression is equivalent to 90+ - (39 – 7) + 5q??
A 992-9-3
B 9q2 - 29-3
C 149² – 2a + 1 - 3 3
14
D 1492-39
14
3

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

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

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16