What are the solution(s) of x^2-4=0 x=-4 or x=4 x=-2 or x=2 x=2 x=4
1 answer:
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Answer:
a) (0.576, 0.624)
Step-by-step explanation:
Given that the sample proportion (p) = 60% = 0.6, sample size (n) = 900, confidence (C) = 85%
α = 1 - C = 1 - 0.85 = 0.15
α/2 = 0.075
The z score of α/2 (0.075) corresponds with the z score of 0.425 (0.5 - 0.075) which is equals to 1.44, hence
The margin of error (E) is:
The confidence interval = p ± E = 0.6 ± 0.024 = (0.576, 0.624)
Answer:
cubic blocks
Step-by-step explanation:
The given parameters are:
Required
Number of cubic blocks to fill the tank
To do this, we simply calculate the volume of the tank by:
This gives:
Simplify
Express as mixed numbers