Answer:
Step-by-step explanation:
Draw the diameter from point (-1, -5) to point (2, 3).
The triangle has base 3 and height 8.
The diameter of the semicircle is the hypotenuse of the triangle.
The radius is half the diameter.
The total area is the area of the triangle plus the area of the semicircle.
Answer:
D.
Step-by-step explanation:
The x-axis of the graph isn't constant with the years. It cannot be consistent if the first twenty years are scaled together and the last 10 are put in increments of 2 years.
About 370 if you convert euros to dollars the answer would be 362.26 and all you have to do is round it :)
visa cards begin with 4 and then have 13 or 16 digits but here we have a number beginning with 4 and then it has the 15 digits.
<u>Step-by-step explanation:</u>
- Each card has a different first digit number. The maximum length of this type of credit card number can be up to 19 digits.
- In the visa card starting 6 digits are always said to be the issuer identifier.
- The visa cards will have the starting digits as 4 whereas in Mastercard the starting digit is 5 but it has 16 digits numbers.
Answer:
188 weeks of data must be sampled.
Step-by-step explanation:
From the information given, we can deduce that:
The Margin of error is within = 200
The confidence interval = 95%
The level of significance = 1 - C.I
= 1 - 0.95
= 0.05
The standard deviation = 1400
The number of weeks the data must be sampled can be determined by using the formula for sample size which is:
![n =( \dfrac{Z_{\alpha/2} \times \sigma}{E} )^2](https://tex.z-dn.net/?f=n%20%3D%28%20%5Cdfrac%7BZ_%7B%5Calpha%2F2%7D%20%5Ctimes%20%5Csigma%7D%7BE%7D%20%29%5E2)
![n =( \dfrac{Z_{0.05/2} \times 1400}{200} )^2](https://tex.z-dn.net/?f=n%20%3D%28%20%5Cdfrac%7BZ_%7B0.05%2F2%7D%20%5Ctimes%201400%7D%7B200%7D%20%29%5E2)
![n =( \dfrac{1.96 \times 1400}{200} )^2](https://tex.z-dn.net/?f=n%20%3D%28%20%5Cdfrac%7B1.96%20%5Ctimes%201400%7D%7B200%7D%20%29%5E2)
![n =( \dfrac{2744}{200} )^2](https://tex.z-dn.net/?f=n%20%3D%28%20%5Cdfrac%7B2744%7D%7B200%7D%20%29%5E2)
![n =( 13.72)^2](https://tex.z-dn.net/?f=n%20%3D%28%2013.72%29%5E2)
n = 188.24
n ≅ 188
Thus, 188 weeks of data must be sampled.