Answer:
The margin of error is of 0.038 = 3.8%.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
For this problem, we have that:
90% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
The margin of error is:
The margin of error is of 0.038 = 3.8%.
Answer:
c. $3,174
Step-by-step explanation:
Using a financial calculator, enter the following inputs to find the Present value (PV) ;
Future value; FV = 4,200
Total duration ; N = 2,920 <em>(365 days in a year times 8 years; 8 * 365 = 2920)</em>
Daily interest rate; I = 3.5% /365 = 0.009589%
PMT = 0
then CPT PV = 3,174.338
Therefore, Arya should deposit $3,174
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You are missing part of the question
Answer:
m = 70°, n = 55°, p = 25°
Step-by-step explanation:
Start of with the 25 degree angle. It and angle p are vertical angles, and vertical angles are equal to each other. Now that we know the value of p we can solve for n. The 100° angle, n, and p are supplementary angles, meaning their total value equals 180 degrees. By subtracting p and 100 from 180, we get the value for n.
To find m, observe that the 110 degree angle and m also are supplementary angles. Simply subtract 110 from 180 to get the answer.
A (n + y) = 10y + 32
(an + ay) = 10y + 32
an + ay = 32 + 10y
Solve for "a"
-32 + an + ay + (-10y) = 32 + 10y + (-32) + (-10y)
-32 + an + ay + -10y = 32 + -32 + 10y + -10y
<span>- 32 + an + ay + (-10y) = 0 + 10y + (-10y)
- 32 + an + ay + (-10y) = 10y + (-10y)
</span><span>10y + -10y = 0
-32 + an + ay + (-10y) = 0
Thi could not be determined. (no solution)</span>
