The customer service department for a wholesale electronics outlet claims that 80 percent of all customer complaints are resolved to the satisfaction of the customer. in order to test this claim, a random sample of 15 customers who have filed complaints is selected. (b) find each of the fottowing ir we assume that the claim is true: (do not round intermediate calculations. round final answers to 4 decimal places.) p(x s 13) 2. p(x> 10) 3. p(x 2 14) (c) suppose that ofthe 15でustomers selected ave had their complaints resolved satisfactorily. using part b, do you believe the claim of 80 percent satisfaction? explain. no : if the claim is true, then p(x 9) is very small ▼

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.

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.