Sammy plans on a discounted loan with an advertised interest rate of 9%. Sammy will pay $153 in interest on the $1700 loan. How
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Answer:
The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 160 degrees
Standard Deviation, σ = 5.4 degrees
We are given that the distribution of temperature of coffee is a bell shaped distribution that is a normal distribution.
Formula:
We have to find the value of x such that the probability is 0.2
Calculation the value from standard normal z table, we have,
Thus,
The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.
When an spherical balloon volume is increasing at the rate of then the diameter of the balloon is increasing
How can we find the rate of change of balloon's diameter ?
The volume of a spherical balloon is
In form of diameter we can write as
Now we will differentiate both sides wrt to we get
Given in the question
thus when we substitute the values we get
Learn more about the differentiation here:
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