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liubo4ka [24]
3 years ago
10

A test score of 48.4 on a test having a mean of 66 and a standard deviation of 11. Find the z-score corresponding to the given v

alue and use the z-score ti determine whether the value is significant.
Mathematics
1 answer:
Savatey [412]3 years ago
6 0

Answer:

It is 4

Step-by-step explanation:

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What does V equal????
Andrews [41]

Answer:

The answer is 4

Step-by-step explanation:

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If you know the answer to these plz answer.
kondaur [170]

Answer:


Step-by-step explanation:  

You can readily see from the diagram, above, that the side length of the middle cube will be between 3 and 4.  You want to determine to the nearest hundredth what value between 3 and 4 represents the side length of the cube whose volume is 45 units^3.

Please note:  the middle cube has been mislabeled.  Instead of volume = 30 units^3, the volume should be 45 units^3.

Here's the procedure:

Guess an appropriate s value.  Let's try s = side length = 3.5

Cube this:  (3.5 units)^3 = 42.875.  Too small.  Choose a larger possible side length, such as 3.7:  3.7^3 = 50.653.  Too large.

Try s = 3.6:  3.6^3 = 46.66.  Too large.

Choose a smaller s, one between 3.5 and 3.6:  3.55^3 = 44.73.  This is the best estimate yet for s.  Continue this work just a little further.  Try s = 3.57.  Cube it.  How close is the result to 45 cubic units?


7 0
3 years ago
Tom wants to buy a dictionary that costs $19.50, a dinosaur book that costs $8.50, and a children's cookbook that costs $5.50. I
aksik [14]

Answer:

The three books cost 33.50 - 9.00 = 24.50. Tom needs 24.50 more to afford all three books

Step-by-step explanation:

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