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zmey [24]
3 years ago
15

Given the mean 71.4 and sample standard deviation 11.5 what is the z-

Mathematics
1 answer:
Elenna [48]3 years ago
6 0

Answer: 1.18

Step-by-step explanation:

Z = (x - mean) / standard deviation

Z = (85 - 71.4) / 11.5

Z = 13.6 / 11.5 = 1.18

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F x and r are inversely proportional and x = 9 when r = 72, then what is x when r = 40?
Oksi-84 [34.3K]

Answer:

16.2

Step-by-step explanation:

r = k/x

  • when x = 9 and r = 72 ,

72 = k/9

k = 72*9

When r = 40 ,

x = k/r

x = 72*9/40 = 16.2

8 0
3 years ago
Can somebody help me figure out the tax bracket please!
klio [65]

Answer:

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4 0
3 years ago
If DEFG is a rectangle,<br> find the measure of DEG.<br> how do i do this
dezoksy [38]

Answer:

It is 68

Step-by-step explanation:

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4 0
3 years ago
Make a line plot of the data with the numbers 22,19,14,15,19,16,21,10,19
olchik [2.2K]

Step-by-step explanation: To draw a line plot for the data shown here, first begin by drawing a line.

Next, notice that the smallest number in our data set is 10 so we begin our line plot at 10. Next, notice that the greatest number in our data set is 22 so we continue our line plot until 22.

Now we fill in the numbers in between.

So we have 10 which we already have, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, and 22.

Now, notice that there is one 10 in our data set so we put one x above 10. Next, notice that are no 11's, no 12's, and no 13's in our data set. So we put no x's above 11, no x's above 12, and no x's above 13. Next, notice that there is one 14 in our data set so we put one x above 14. Now, notice that there is one 15 and one 16 in our data set so we put one x above 15 and one above 16. Since there are no 17's or 18's in our data set, we put no x's above 17 and no x's above 18. Finally, notice that there is three 19's, no 20's, one 21, and one 22 in our data set so we put three x's above 19, and one x above 21 and 22. We put no x's above 20.

I have attached my line plot in the image provided.

5 0
3 years ago
Fill in the blanks W Two numbers that when multiplied together gives 6 and when added together gives -7 are: and​
Sophie [7]

Answer:

-1 and -6.

Step-by-step explanation:

-1 and -6

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-1 + (-6) = -1-6= -7.

8 0
3 years ago
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