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sweet [91]
3 years ago
9

4 Which of the following is a composite number between 80 ard 100?​

Mathematics
1 answer:
Firlakuza [10]3 years ago
8 0

Answer: 90

90 is a composite number because:

4 x 15 = 90

10 x 9 = 90

A composite number has more than two factors.

Hope this helps!

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125^-1/3 integer or a​ fraction.
kenny6666 [7]
The fraction for ur problem would he since 12639 _< 782
6 0
2 years ago
Tim Worker is doing his budget. He discovers that the average electric bill for the year was $206.00 with a standard deviation o
ivanzaharov [21]

Answer:

  • -2.2
  • 1.4%
  • -0.6
  • 27.4%
  • 26%
<h3>Step-by-step explanation:</h3>

The z-value is computed from ...

... z = (x -µ)/σ

... z = (184 -206)/10 = -2.2 . . . . for $184

... z = (200 -206)/10 = -0.6 . . . . for $200

You can look up these values in a normal distribution table, or you can use an appropriate calculator to find the corresponding percentiles.

... -2.2 corresponds to the 1.390 percentile. (That amount of area is below -2.2 standard deviations from the mean.)

... -0.6 corresponds to the 27.425 percentile.

Subtracting the two percentages gives the percentage of expenses between $184 and $200. That number is 26.035% ≈ 26%.

_____

<em>Comment on the calculator display</em>

The difference that got cut off from the display in the attachment is ...

... 0.2603496703

The <em>normalcdf( )</em> function requires a lower limit. Using -8 standard deviations is effectively equivalent to -∞ for this purpose, as any lower number has no effect on the least-significant digits of the result.

7 0
3 years ago
What to fractions equal 1/3
makkiz [27]

Answer:

2/6 and 3/ 9 just multiply by whatever on both sides

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
A person operating a machine can mow 0.75 acres in ½ hour. What is the rate, in acres per hour, that the person can mow? Write y
Gekata [30.6K]

1.50 acres is the answer.

5 0
3 years ago
Suppose we went to choose 2 letters without replacement from 3 letters a b and c
vagabundo [1.1K]

Answer:

6 ways -  ab,ac, ba,bc and ca,cb

Step-by-step explanation:

We are given 3 letters a,b,c.

We can choose the first letter in 1 out of 3 ways.

Once the first letter has been chosen without replacement, we have two letters remaining. Another letter can be chosen from the 2 remaining letters in  2 ways. So the total number of ways of choosing the two letters is 3*2 = 6.

Listing out the possible set of choices:

Options include: ab,ac, ba,bc and ca, cb

3 0
3 years ago
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