-1/3n = -12 is the way you write it
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Answer:
9
Step-by-step explanation:
I think these two triangles are similar so UT is similar with UC and US is similar with BU after that you should do it 12-BU is it enough?
Answer:
96
Step-by-step explanation:
From the given information:
At 95% Confidence interval level,Level of significance
0.05, the value of Z from the standard normal tables = 1.96
Margin of Error = 0.10
Let assume that the estimated proportion = 0.5
therefore; the sample size n can be determined by using the formula: 


n = 96.04
n
96