When a polling company calls a telephone number at random, there is only a 9% chance that the call reaches a live person and the sur- vey is successfully completed.10 suppose the randorm digit dialing machine makes 15 calls. let x - the num ber of calls that result in a completed survey

the probability that a bird is green (.30) is true

step-by-step explanation:

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.