Answer:
Orge has $50 left in his checking account.
Step-by-step explanation:
Answer:
I think that the answer is A.
Step-by-step explanation:
Answer: P(x ≥ 47) = 0.25
Step-by-step explanation:
Since the distribution of the life expectancies of a certain protozoan is normal, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = life expectancies of the certain protozoan.
µ = mean
σ = standard deviation
n = number of samples
From the information given,
µ = 46 days
σ = 10.5 days
n = 49
The probability that a simple random sample of 49 protozoa will have a mean life expectancy of 47 or more days is expressed as
P(x ≥ 47) = 1 - P(x < 47)
For x = 47
z = (47 - 46)/(10.5/√49) = 0.67
Looking at the normal distribution table, the probability corresponding to the z score is 0.0.75
P(x ≥ 47) = 1 - 0.75 = 0.25
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♫ :::::::::::::::::::::::::::::: // Hello There ! // :::::::::::::::::::::::::::::: ♫</h3>
➷ Let the width be 'x' and the length be 'x + 2'
Area = l x w
Substitute the values in:
48 = x(x + 2)
48 = x^2 + 2x
Use trial and error [it'll only take a few turns] to get the value for x
x = 6
x + 2 = 8
Thus, the length of the paddock is 8m and the width is 6m.
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➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
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