Answer:
5
Step-by-step explanation:
The function is
- decreasing for all
- is increasing for all
(see attached diagram for details).
The maximum value of the function is at endpoints -3 or 2. find y(-3) and y(2):
So, the maximum value is 5.
Solve for x in the following equation: 2x+3=9
1 answer:
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Answer:
The 90% confidence interval for the true mean daily wage of all union workers in the industry is ($118.6, $125.4). The lower limit is $118.6 and the upper limit is $125.4.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
That is z with a pvalue of , so Z = 1.645.
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 122 - 3.4 = $118.6
The upper end of the interval is the sample mean added to M. So it is 122 + 3.4 = $125.4
The 90% confidence interval for the true mean daily wage of all union workers in the industry is ($118.6, $125.4). The lower limit is $118.6 and the upper limit is $125.4.
Answer:
The correct option is C
Step-by-step explanation:
The given equation is:
y ≥ 2x - 3
For x= 2
y = 2(2) - 3 = 1
For x=0
y = 2(0) - 3 = -3
WE have two point:
(2,1) and (0,-3)
Graph both points on the coordinate plane.
Join both points and extend the line to find the graph of the line y = 2x - 3
To find the area the represents y ≥ 2x - 3, consider any point, suppose (0,0)
Substitute (0,0) into y ≥ 2x - 3
0 ≥ 2(0) - 3
0 ≥ -3
Hence the equation satisfies.
Which means the area which has the point (0 , 0) shows the region for the equation y ≥ 2x - 3.
The graph is shown.
