Allison invested $70,000 in an account paying an interest rate of 6.2%
2 answers:
Answer and Step-by-step explanation:
First, you need to make the function to represent the information given.
We start with 70,000 in the account, and have an interest rate of 6.2%.
We want to know how long it will take to get $223,200.
The equation for simple interest is:
A =
Where A is the total amount, P is the principle amount of money, r is the rate, and t is the time.
Now, we plug in the values and solve for t.
t = 0.353
Multiply by 100 to get the years.
t = 35.3
So, it will take Allison 35.3 years to get 70,000 dollars to 223,200 dollar with an interest rate of 6.2%
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Given:
p = 7.6% = 0.076, the percentage of people who stay overnight at the hospital.
E = 1.5% = 0.015, margin of error
95% confidence interval.
The standard error is
Es =
where
n = the sample size.
The margin of error is
where
z* = 1.96 at the 95% confidence level.
Because the margin of error is given, there is no need to calculate it.
The 95% confidence interval is
p +/- E = 0.076 +/- 0.015 = (0.061, 0.091) = (6.1%, 9.1%)
Answer:
The 95% confidence interval is between 6.1% and 9.1%.
p = 7.6% = 0.076, the percentage of people who stay overnight at the hospital.
E = 1.5% = 0.015, margin of error
95% confidence interval.
The standard error is
Es =
where
n = the sample size.
The margin of error is
where
z* = 1.96 at the 95% confidence level.
Because the margin of error is given, there is no need to calculate it.
The 95% confidence interval is
p +/- E = 0.076 +/- 0.015 = (0.061, 0.091) = (6.1%, 9.1%)
Answer:
The 95% confidence interval is between 6.1% and 9.1%.
Answer:
The restricted value is x=0
Step-by-step explanation:
We have been given the expression
This is a rational function. We know that the rational expression is undefined if denominator is zero.
Here, we will use this fact to find the restricted value (s) of .
Restricted values means the values for which the function is not defined.
The given function is not defined if the denominator is zero.
12x =0
x =0
Hence, the restricted value is x=0