Answer:
6 - 3.5 = 2.5
Step-by-step explanation:
Answer:
required probability is 0.8413
Step-by-step explanation: Given mean
minutes, standard deviation
seconds, we need to find
. Using z score

So,

I'm not 100 percent sure but I think is e
If it was one quarter of the price, you multiply 1000 by 0.25 (1/4) to get 250 a month.
Answer:
Solution set = {25}
Step-by-step explanation:
=> 
Dividing both sides by -1
=> 
Taking square on both sides
=> x = 25
<em><u>Solution set = {25}</u></em>