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leonid [27]
3 years ago
7

Which of the following lines has a zero slope?

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
7 0

It should be A because C cannot exist at the moment. B and D are clearly slopes, so it has to be A.

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Due in 4 minutes Need help ASAP
Snezhnost [94]

Answer:

Slope is 1/2

Step-by-step explanation:

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2 years ago
Translate the algebraic expression below into a written expression.
Mrac [35]
The answer would be B
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¿ Cuanto tiempo tarda en<br>llenarse un botella de gel<br>antibacterial?​
Afina-wow [57]

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3 years ago
Will give brainliest!
PilotLPTM [1.2K]
1. Simple interest
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3. rate of interest
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3 0
3 years ago
Read 2 more answers
A bank wonders whether omitting the annual credit card fee for customers who charge at least $3,000 in a year would increase the
Law Incorporation [45]

Answer:

The 95% confidence interval for the mean amount of the increase is ($541.6, $588.4). This means that we are 95% sure that the mean amount of increase of all customers who charge at least $3,000 in a year is between these two values.

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 - 0.95}{2} = 0.025

Now, we have to find z in the Z-table as such z has a p-value of 1 - \alpha.

That is z with a pvalue of 1 - 0.025 = 0.975, so Z = 1.96.

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.

M = 1.96\frac{267}{\sqrt{500}} = 23.4

The lower end of the interval is the sample mean subtracted by M. So it is 565 - 23.4 = $541.6

The upper end of the interval is the sample mean added to M. So it is 565 + 23.4 = $588.4

The 95% confidence interval for the mean amount of the increase is ($541.6, $588.4). This means that we are 95% sure that the mean amount of increase of all customers who charge at least $3,000 in a year is between these two values.

4 0
2 years ago
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