Answer:


Step-by-step explanation:
<u>Given function</u>:

If (x + 2) is a factor then:

Expand:



To find <em>a</em>, compare the coefficients of x³:

To find <em>b</em>, substitute the found value of <em>a</em> into the coefficient for x² and compare:



To find <em>c</em>, compare the constants:


Therefore:

Now factor (3x²-8x+5):



Therefore the factored function is:

<u>Zero Product Property</u>

To find the zeros, set each factor equal to zero and solve for x:



Therefore, the zeros of the function are:

Answer:
adout 53 Years old
Step-by-step explanation:
2. = 6=12=32. 32/2= 16
5.3=16=32= 16/3=5.333...
5.3x10=S3.3
so adout 53 Years old
Answer:
How to Find the Mean. The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
Answer:
The required sample size for the new study is 801.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
The margin of error is:

25% of all adults had used the Internet for such a purpose
This means that 
95% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
What is the required sample size for the new study?
This is n for which M = 0.03. So






Rounding up:
The required sample size for the new study is 801.
I found this, Hope this helps you.