The answer is: "squares".
1. Therefore, the complete sentence is:
"<span>A difference of two squares is an expression that contains two perfect squares, with one subtracted from the other".
</span>
2. It has the following form:
a²-b²
3. You can factor the expression above as below:
(a-b)(a+b)
4. For example:
x²-4 can be written as x²-2², then it can be factor as following:
x²-2²=(x-2)(x+2)
Answer:
The number of surveys needed to be collected is 152.
Step-by-step explanation:
The (1 - <em>α</em>)% confidence interval for population proportion <em>p</em> is:
The margin of error for this interval is:
The information provided is:
Compute the critical value of <em>z</em> for 89.9% confidence level as follows:
*Use a <em>z</em>-table.
Compute the sample size value as follows:
Thus, the number of surveys needed to be collected is 152.
The answer is c 64 because I know I did a