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Murljashka [212]
3 years ago
11

Please help me with this i will give brainliest

Mathematics
1 answer:
dmitriy555 [2]3 years ago
8 0

Answer:

the first one and the last one,

Step-by-step explanation:

I took the test :) hope you pass

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If you change the sign of a point's x-coordinate,how does the location of the point change?
yuradex [85]
If you change the point's x-coordinate, the point will move either to the left or the right, depending on if the number you change is negative or positive. 
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3 years ago
Construct a sample (with at least two different values in the set) of 3 measurements whose variance is negative. If this is not
Bond [772]

This is not possible. Why not? Because the smallest the variance can get is 0.

Recall that 's' represents the standard deviation, so s^2 is the variance. It basically measures how spread out the values are. The higher the variance, the more spread out the data. You can think of it as "average distance from the mean". If the variance is 0, then all of the values are at the same point. So you could have a list like {2,2,2,2,2} which has variance 0. We cannot get any smaller variance than that. If your teacher insists all the values in the list are different, then the variance will be greater than 0.

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3 years ago
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Nesterboy [21]

One is 17.22 and the other is simply 2.

3 0
3 years ago
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Use the graph below to determine the number of solutions the system has.<br><br> x=4<br> y=-x-1
GrogVix [38]

Answer:

The system x = 4 and y = -x - 1 has one solution

Step-by-step explanation:

x = 4 and y = -x - 1 intersects only once on the graph

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3 years ago
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6. The complement of an angle is 5 less than four times the angle. Find the measure of the angle.
Korvikt [17]

The first angle is 76 and the second angle is 14. You can check this by doing 14+5=19 and then multiply that by 4.

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