The value of 2 in 2783 (2000) is 10 times the value of two in 7283 (200).
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Nate
Hello There!
I'm assuming it is p p.
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Good Luck :)
- Hannah ❤
Answer:
3x^2 + x -12 + 15/(x^2+4)
Step-by-step explanation:
Answer: A. 664
Step-by-step explanation:
Given : A marketing firm is asked to estimate the percent of existing customers who would purchase a "digital upgrade" to their basic cable TV service.
But there is no information regarding the population proportion is mentioned.
Formula to find the samples size , if the prior estimate to the population proportion is unknown :

, where E = Margin of error.
z* = Two -tailed critical z-value
We know that critical value for 99% confidence interval =
[By z-table]
Margin of error = 0.05
Then, the minimum sample size would become :

Simplify,

Thus, the required sample size= 664
Hence, the correct answer is A. 664.
Combine like terms
9r+r=10r^2
7b+b=8b^2
10+10r^2+8b^2+4n