Answer: 0.3413
Step-by-step explanation:
Given: an American household generates an average of 28 pounds of newspaper for garbage or recycling. Assume the standard deviation is 2 pounds.
Let
.
Let x be the random variable that denotes the amount of newspaper for garbage generated by each household each month.
If the data conforms to a normal distribution and a household is selected at random, the probability of its generating between 28 and 30 pounds per month is about

Hence, the required probability is 0.3413.
Answer:
21 = 21
Step-by-step explanation:
5x + 1 = 21
-1 -1
5x = 20
__ __
5 5
x = 4
5x + 1 = 21 First substitute x for 4
5(4) + 1 = 21 Then continue to solve the problem to get the proof
20 + 1 = 21
21 = 21
Answer:
the picture go to be 1/4 more smaler
Step-by-step explanation:
Multiply 3.25 x 5 + 0.68 x 18.5
16.25 + 0.68 x 18.5
Multiply 0.68 x 18.5 = 12.58
16.25 + 12.58
Add 16.25 + 12.58 = 28.83
Answer ~ 28.83