The number 22 has exactly four factors. since 22 is a multiple of 11, which must be true of 11?
it must have only one factor.
it must have more than one but fewer than four factors.
it must have exactly four or more than four factors.
it must have more than four factors.

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

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?

Secant ac and bd intersect at point e inside f what is the measure of aed if measurements cd equals 30 a b is 50 and cb is 170