Answer:
the sum is 5
Step-by-step explanation:
18 glasses of water
3.6/.2=18
X= 5 or -8
Add all the like terms and set it equal to 49, use quadratic formula or factoring.
Answer: x=5
Step-by-step explanation:
Answer:
99
Step-by-step explanation:
The mean = 90 days
standard deviation = 20 days
P(Z < z) = 68 %
getting the value of z-score from the standard normal table of 0.68
z = 0.47
P(Z < 0.47) = 0.47 * 20 + 90 = 99
