Answer:
9.42
Step-by-step explanation:
C= 2 times pie times radius
Answer:
dividend is 8
divisor = 2
quotient =4
Step-by-step explanation:
dividend ÷ divisor = quotient.
8 ÷ 2 = 4.
dividend is 8
divisor = 2
quotient =4
Answer:
the answer is a
Step-by-step explanation:
First we need to find how many flights there are per day. Divide 16,000 by 5 to get 3200. 3200 flights per day. Then you multiply 3200 by 7 to find the amount of flights per week. 22400!
Answer:
1442
Step-by-step explanation:
Given,
Mean is,

Standard deviation,
,
Margin of error(E) = 0.54,
For 98% level of confidence, 
Thus, the sample size would be,
![n=[\frac{z_{\frac{\alpha}{2}}\times \sigma}{E}]^2](https://tex.z-dn.net/?f=n%3D%5B%5Cfrac%7Bz_%7B%5Cfrac%7B%5Calpha%7D%7B2%7D%7D%5Ctimes%20%5Csigma%7D%7BE%7D%5D%5E2)
![=[\frac{2.33\times 8.8}{0.54}]^2](https://tex.z-dn.net/?f=%3D%5B%5Cfrac%7B2.33%5Ctimes%208.8%7D%7B0.54%7D%5D%5E2)

