The duration of audio content on audio CDs is found to follow a normal distribution, with a mean of 82.1 minutes and a standard deviation of 6.5 minutes.
If the company distributes 5.5 million CDs in one year, what is the approximate number of CDs that have content lasting less than
70 minutes?

h who knows

step-by-step explanation:

a

step-by-step explanation:

the answer is a

the correct answer would be:

220 centimeters

to get this you can use the pythagorean theorem

hope this

step-by-step explanation:

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.