The sum of two numbers is 10. The difference between the two numbers is 4. What is the smaller number?
-I
3
7
9
11

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

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

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?