Answer:
The minimum sample needed to provide a margin of error of 3 or less is 52.
Step-by-step explanation:
The confidence interval for population mean (<em>μ</em>) is:
The margin of error is:
<u>Given:</u>
MOE = 3
<em>σ </em>= 11
The critical value for 95% confidence interval is: 
**Use the <em>z</em>-table for critical values.
Compute the sample size (<em>n</em>) as follows:
Thus, the minimum sample needed to provide a margin of error of 3 or less is 52.
Answer:
The expression is equal to 1 over 12 factors of r
Multiplying the exponents will create an equivalent expression.
Step-by-step explanation:
We are given the following in the question:
<h3>Properties of exponent:
</h3>
Thus, we can simplify the given expression as:
= 
= 
Thus, the correct answer is:
Option 2) The expression is equal to 1 over 12 factors of r
Option 4) Multiplying the exponents will create an equivalent expression.
-19.2
12/(-5/8) means 12*(-8/5)
12*8=96
96/5=19.2
don’t forget the negative sign
so
-19.2
Addition will be the last operation
12 feet squared or 3 feet squared. hopefully this helps i got 2 different answers
