An archer is able to hit the bull's-eye 55 percent of the time. if she shoots 8 arrows, what is the probability that she gets exactly 4 bull's-eyes? assume each shot is independent of the others.

Find the sum of the first 8 terms of the following sequence. round to the nearest hundredth if necessary.

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11