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ASHA 777 [7]
3 years ago
7

What is the greatest possible percent error in calculating the volume of a box measured to the nearest inch with sides of 5 in,

10 in., and 10 in?
Round to the nearest percent
A. 18%
B. 21%
C. 23%
D. 25%
Mathematics
1 answer:
Otrada [13]3 years ago
6 0
You can't make any errors or else you will get the wrong answer
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12 seconds

Step-by-step explanation:

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The state highway department is studying traffic patterns on one of the busiest highways in the state. As part of the study, the
larisa86 [58]

Answer:

The need to sample 76 days.

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.

So it is z with a pvalue of 1-0.005 = 0.995, so z = 2.575

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

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

How many days do they need to sample

We need to sample n days.

n is found when M = 300.

We have that \sigma = 1010

So

M = z*\frac{\sigma}{\sqrt{n}}

300 = 2.575*\frac{1010}{\sqrt{n}}

300\sqrt{n} = 2.575*1010

\sqrt{n} = \frac{2.575*1010}{300}

(\sqrt{n})^{2} = (\frac{2.575*1010}{300})^{2}

n = 75.1

Rounding up

The need to sample 76 days.

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3 years ago
Which function could be a stretch of the exponential decay function shown on the graph?
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The function that could be a stretch of the exponential decay function shown on the graph is B. f(x) = One-half(6)x.

<h3>How to illustrate the function?</h3>

From the information given, it can be seen that function A is a monotonically increasing function.

Also, it can be seen that C and D don't pass through (0, 1).

Therefore, the function could be a stretch of the exponential decay function shown on the graph is B.

Learn more about functions on:

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It's easy just use y=mx+b form ok?

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