Simplify the expression: 1/2 (6y – 8) – (12y – 16) + 7
2 answers:
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Answer:
The answer to your question is 10¹/⁴
Step-by-step explanation:
Expression
To solve this problem use the law of exponents.
-Use the division rule of exponents.
If the base if the same in the numerator and denominator, it stays the same and the exponents are subtracted.
10¹ ⁻ ³/⁴ = 10¹/⁴ This is the result
Answer:
The store can be 90% confident that the interval from 0.293 to 0.355 captures the proportion of all customers of this store who have moved in the past 5 years.
Step-by-step explanation:
The confidence interval provides a range of values (lower and upper bound) based on a certain confidence level at which the true proportion or mean value of a given sample mean or proportion exists. In the scenario above, the confidence level is 90% and the confidence interval is 0.293 to 0.355. Hence, we can be 90% confident that the true proportion of all customers of the store who have moved within the last five years exists within this interval.
