Acareer-placement test eliminates a profession when a person receives a score of 18 or less. if the score is calculated
using the formula of the difference between double the number of items with a positive response and three times the
number of items with a negative response, which graph represents the combination of response types that are possible for
profession to be eliminated?

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.

What is the slope of the line that passes through the points (–9, 2) and (0, 4)? the slope of the line is

There are a total of 75 students in the robotics club and science club. the science club has 9 more students than the robotics club. how many students are in the science club?