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fiasKO [112]
3 years ago
9

If the midpoint between (18,y) and (20,-15) is (19,-5) find the value of y.​

Mathematics
2 answers:
Kisachek [45]3 years ago
6 0

Answer:

5

Step-by-step explanation:

zlopas [31]3 years ago
5 0

Answer:

What I did was I plotted (20,-15) and (19, -5). From the endpoint to the mid point I got 1 unit to the right and 10 units up. SO I did the same but start at the midpoint and get (18,5).

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Does 4( − 11) = 15 − 4 have a solution , infinite or none?
QveST [7]

Answer:

The equation given has no solution.

Step-by-step explanation:

The equation given is:

4( -11) = 15 -4

-44 = 11

Therefore, this is false.

5 0
3 years ago
A botanist collected one leaf at random from each of 10 randomly selected mature maple trees of the same species. The mean and t
Zarrin [17]

Answer:

One sample t-test for population mean would be the most appropriate method.

Step-by-step explanation:

Following is the data which botanist collected and can use:

  • Sample mean
  • Sample Standard Deviation
  • Sample size (Which is 10)
  • Distribution is normal

We have to find the best approach to construct the confidence interval for one-sample population mean. Two tests are used for constructing the confidence interval for one-sample population mean. These are:

  • One-sample z test for population mean
  • One-sample t test for population mean

One sample z test is used when the distribution is normal and the population standard deviation is known to us. One sample t test is used when the distribution is normal, population standard deviation is unknown and sample standard deviation is known.

Considering the data botanist collected, One-sample t test would be the most appropriate method as we have all the required data for this test. Using any other test will result in flawed intervals and hence flawed conclusions.

Therefore, One-sample t-test for population mean would be the most appropriate method.

8 0
4 years ago
What is the sum of a 7-term geometric series if the first term is −11, the last term is −171,875, and the common ratio is −5?
mr_godi [17]
The answer is -143231 
hope this helps:]
4 0
3 years ago
Read 2 more answers
Plz help I need help
Mrac [35]

Answer:

What do you need help with mate?

Step-by-step explanation:

you don't have a question posted.

3 0
3 years ago
Johanna used tiles to build a rectangler array with an array with an areavof 54.list all the possible dimensions of the array
lyudmila [28]
Assuming that all tiles must stay whole it would be:
1×54
2×27
3×18
6×9
4 0
3 years ago
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