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sashaice [31]
3 years ago
8

C=10,000-110x+0.45x^2

Mathematics
1 answer:
Elanso [62]3 years ago
7 0
If this is a graph, I attached the file.
The minimum is (122.222, 3277.778)
The y intercept is (0,10000)
The graph: .45x^2-110x+10000

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What is a transformation that proportionally reduces or enlarges a figure.
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Answer: Dilation is a transformation that proportionally reduces or enlarges a figure.

Step-by-step explanation:

  • A dilation a transformation that changes the size of the shape by using scale factor in particular ways .

It stretches or shrinks the actual figure. It produces similar figures.

Since the corresponding sides of similar figures are in proportion.

⇒ It proportionally reduces or enlarges a figure.

Hence, A dilation is a transformation that proportionally reduces or enlarges a figure.

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The rate on a cell phone is $0.22 per minute. If Izzy uses her phone for 2 hours, how much does she pay?
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2 years ago
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polet [3.4K]

Answer:

42m

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2 years ago
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A sample size of n = 64 is drawn from a population whose standard deviation is o = 5.6.
AlekseyPX

Answer:

The margin of error for a 99% confidence interval for the population mean is 1.8025.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.99}{2} = 0.005

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

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In which \sigma is the standard deviation of the population and n is the size of the sample.

In this problem:

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So

M = 2.575*\frac{5.6}{\sqrt{64}} = 1.8025

The margin of error for a 99% confidence interval for the population mean is 1.8025.

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3 years ago
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