1/2 cup of water. The ratio of water to sugar is 1:2, so one cup of sugar should be mixed with 12 cup water.
Answer: Yes, Atoine is correct.
Step-by-step explanation:
The roots of a quadratic function are also known as the solutions or the zeros of a function. Here is how we get them:
1. Let y=0 to find the x-intercept(s).
0=x^2+25
2. Subtract 25 from both sides.
−25=x&2
3. Take the square root of both sides.
±√−25
=x
4. Simplify √−25 to √25ı.
±√25ı=x
5. Since 5×5=25, the square root of 25 is 5.
±5ı=x
6. Switch sides.
x=±5ı
The equation above is not a real solution that represents a line.
Therefore, there are no x-intercepts.
Answer:
A sample size of 61 will produce a margin of error of 9% with 90% confidence level
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 of the confidence interval is:
For this problem, we have that:
90% confidence level
So , z is the value of Z that has a pvalue of , so .
What sample size will produce a margin of error of 9% with 90% confidence level
This is n when M = 0.09. So
A sample size of 61 will produce a margin of error of 9% with 90% confidence level
The answer is that I think it is 5