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stepan [7]
3 years ago
11

1. Clare has a piece of paper that is 8 inches by 10 inches. How many pieces of paper

Mathematics
2 answers:
pishuonlain [190]3 years ago
7 0
4 papers that are 2 inches by 2 1/2 inches
MrRa [10]3 years ago
4 0

Answer:

She has 2^n pieces,

The area of each piece would be 80(\frac{1}{2})^n

Step-by-step explanation:

Given,

The piece of paper has dimension 8 inches by 10 inches,

So, the area of the paper = 8 × 10 = 80 square inches,

Now, if the pages is half cut n times,

Then the area of the final piece = 80(\frac{1}{2})^n

Hence, the number of pieces = \frac{\text{Area of page}}{\text{Area of each piece}}

=\frac{80}{80(\frac{1}{2})^n}

=2^n

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What value of c makes the equation true? 34 = 6 + 4c
blagie [28]

Answer:

7

Step-by-step explanation:

34-6=28

28/4=7

c=7

8 0
3 years ago
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What is the center of the equation (x+12)^2 + (y-9)^2= 35
Reil [10]

Answer:

(-12,9)

Step-by-step explanation:

The equation of a circle is given by the equation (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the center point on the graph.

Therefore, in the equation (x+12)^2 + (y-9)^2 = 35, the center point on the graph would be (-12,9).

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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%
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<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
When you solve a problem involving money, what can a negative answer represent?
kow [346]
That you owe someone some money
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Solve for Z. 42=-7(z-3)
elixir [45]

42/7=Z-3

6=Z-3

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Z=9

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3 years ago
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