Answer: 1- quadrant 1 or top right
2- quadrant 4 or bottom right
3-quadrant 3 or bottom left
Consider the below figure attached with this question.
Given:
To find:
The number of line that represents the solution of given inequality.
Solution:
We have,
Subtracting 6 from both sides, we get
If an inequality is multiplied or divide by a negative number, then the sign of inequality must be change.
Divide both sides by -4.
The value of x is less than -3. It means number of the left of -3 are included in the solution set but -3 is not included in the solution set.
So, there is an open circle at x=-3 on the number and an arrow from -3 towards left.
Therefore, the correct option is A.
We have the equation:
so:
and:
This equation has one solution.
Answer:
64
Step-by-step explanation:
Trust me, this is the answer, PLEASE GIVE ME BRAINLIEST
Answer:
Step-by-step explanation:
We want to construct a 99% confidence interval for the population mean
Number of sample, n = 60
Mean, u = $150
Standard deviation, s = $36
For a confidence level of 99%, the corresponding z value is 2.58. This is determined from the normal distribution table.
We will apply the formula
Confidence interval
= mean +/- z ×standard deviation/√n
It becomes
150 ± 2.58 × 36/√60
= 150 ± 2.58 × 4.65
= 150 ± 11.997
The lower end of the confidence interval is 150 - 11.997 = 138.003
The upper end of the confidence interval is 150 + 11.997 =161.997
Therefore, with 99% confidence interval, the population mean is between $138.003 and $161.997