Answer:
He lost 15 points and recieved 12 points back now he missing 3 points
To find the zeroes you make the function equal to zero and then solve.

Then factor out the x to get a quadratic inside the parentheses.

Factor the inside quadratic formula.

Lastly, use the zero product property to solve.

Answer:
Julio did 6/2. The correct answer is 12.
Step-by-step explanation:
6/1/2=6*2=12. Julio forgot to change the division into multiplication. Dividing is multiplying by it's reciprocal.
Multiplicity of a root means, is there that many times.
The confidence interval can be calculated from the margin of error, and vice versa,
The margin of error of the confidence interval is 2.156
The confidence interval is given as:

The formula of confidence interval is:

Where E represents the margin of error.
So, by comparison:

Multiply

Hence, the margin of error of the confidence interval is 2.156
Read more about margin of errors at:
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