A30% solution of fertilizer is to be mixed with 60% solution of fertilizer to get 150 gallons of 50% solution. how many gallons of each solution is needed?

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship

Which term applies to agb and dge? a. obtuse b. supplementary c. complementary d. vertical