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creativ13 [48]
3 years ago
9

Jessie spent $10 on 3 hair accessories. Which point represents this relationship?

Mathematics
2 answers:
vova2212 [387]3 years ago
5 0

Answer:

The point is given by (3,10)

Step-by-step explanation:

We are given that,

Jessie spent $10 on 3 hair accessories.

Let us assume,

<em>x-axis represents the number of accessories</em>

<em>y-axis represents the cost spent (in dollars).</em>

<h3>So, the point representing the situation will be of the form (x,y).</h3>

According to the question, we have,

Number of accessories, x = 3

Cost of the accessories, y = $10

<h3>Thus, the point is given by (3,10).</h3>
allsm [11]3 years ago
4 0
If dollars is the y-axis, the point is 3, 10
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Answer:

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Step-by-step explanation:

We know that the sample proportion have the following distribution:

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In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by \alpha=1-0.90=0.1 and \alpha/2 =0.05. And the critical value would be given by:

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The margin of error for the proportion interval is given by this formula:  

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And on this case we have that ME =\pm 0.04 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

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