40s+(2b)s+200=. Substitute s and b
40•8+(2•12)•8+200=.
Calculate consider order of operations
320+192+200=712 books
Answer:
a) 0.25249
b) 0.66575
Step-by-step explanation:
We solve this question using z score formula
= z = (x-μ)/σ, where
x is the raw score
μ is the population mean = 23.2 gallons
σ is the population standard deviation = 2.7 gallons
a) Find the probability that a randomly selected American drinks more than 25 gallons of bottled water in a year.
For x = 25 gallons
z = 25 - 23.2/2.7
z = 0.66667
Probability value from Z-Table:
P(x<25) = 0.74751
P(x>25) = 1 - P(x<25)
1 - 0.74751
= 0.25249
The probability that a randomly selected American drinks more than 25 gallons of bottled water in a year is 0.25249
2) What is the probability that the selected person drinks between 22 and 30 gallons
For x = 22 gallons
z = 22 - 23.2/2.7
z = -0.44444
Probability value from Z-Table:
P(x = 22) = 0.32836
For x = 30 gallons
z = 30 - 23.2/2.7
z =2.51852
Probability value from Z-Table:
P(x = 30) = 0.99411
The probability that the selected person drinks between 22 and 30 gallons is
P(x = 30) - P(x = 22)
= 0.99411 - 0.32836
= 0.66575
Answer:
Look at explanation.
Step-by-step explanation:
For the first four, take the first term and add the common difference to it to get the second term. Then add the common difference to the second term to get the third term, and so on until the 5th term. If the common difference is negative, you subtract it instead of adding it.
Hello,
f(x)=y=4x+12
x=4y+12
==>4y=x-12
==>y=x/12- 3
g(x)=x/12 -3