Hi there!
To solve, we must use PEMDAS:
P: Parenthesis
E: Exponents
M: Multiply
D: Divide
A: Add
S: Subtract
Evaluate the inside of the parenthesis:
(124 + 6 × 8)
Multiply first:
(124 + 48)
Evaluate:
124 + 48 = 172
Divide by 2:
172 ÷ 2 = 86 = t
Please answer I need by tonight explain a little thanks
1 answer:
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Answer:
The correct option is (i) I expect the confidence interval based on the sample of 64 data values to be more precise.
Step-by-step explanation:
Consider the provided information.
The sample size is inversely proportional to the standard error of the sample mean decreases.
As the size increase the standard error of the sample mean decreases.
Hence, for greater precision select the confidence interval based on the greater sample of data.
Therefore, we expect the confidence interval based on the sample of 64 data values to be more precise.
The correct option is (i) I expect the confidence interval based on the sample of 64 data values to be more precise.
Answer and Step-by-step explanation:
1) If you graph the lines, you will get the lines in the first attachment. You will see that the intersection point is (3, 5), which is the solution to that system.
2) First, let's convert both of these into slope-intercept form so that they're easier to graph.
x - 3y = 2
x = 3y + 2
3y = x - 2
y =
AND
-3x + 9y = -6
9y = 3x - 6
y =
We see that these two lines are exactly the same, which means that no matter what coordinate works for one, it will work for the other. In other words, there are infinitely many solutions.
And, if you graph these lines, you will get the graph in the second attachment, where they are the same line.
Hope this helps!
