Alaboratory employee is mixing a 10% saline solution with 4% saline solution. how much of each solution is needed to make 500 milliliters of a 6% solution.

170 milliliters of the 10% solution and 340 milliliters of 4% solution

167 milliliters of the 10% solution and 333 milliliters of 4% solution

110 milliliters of the 10% solution and 210 milliliters of 4% solution

155 milliliters of the 10% solution and 300 milliliters of 4% solution

Can someone tell me if this is perpendicular? !

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.

The median for the given set of six ordered data values is 29.5 9 12 25 __ 41 48 what is the missing value?