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tangare [24]
3 years ago
5

The graph shows a proportional relationship.

Mathematics
1 answer:
koban [17]3 years ago
8 0
The unit rate is 4.5
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Evaluate 4(6) + 7 (5 - 3 ) <br> A: 118<br> B: 80<br> C: 10<br> D: 38
ivanzaharov [21]
<span>4(6) + 7 (5 - 3 ) 
= 24 + 7(2)
= 24 + 14
= 38

answer
</span><span>D: 38</span>
5 0
3 years ago
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A university interested in tracking its honors program believes that the proportion of graduates with a GPA of 3.00 or below is
insens350 [35]

Answer:

The value of the test statistic and its associated p-value at the 5% significance level are -1.54 and 0.9382, respectively.

Step-by-step explanation:

A university interested in tracking its honors program believes that the proportion of graduates with a GPA of 3.00 or below is less than 0.16.

This means that the null hypothesis is:

H_{0}: p \geq 0.16

Testing this hypothesis, means that the alternate hypothesis is:

H_{a}: p > 0.16

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

0.16 is tested at the null hypothesis:

This means that \mu = 0.16, \sigma = \sqrt{0.16*0.84}

In a sample of 200 graduates, 24 students have a GPA of 3.00 or below.

This means that n = 200, X = \frac{24}{200} = 0.12

Value of the test statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.12 - 0.16}{\frac{\sqrt{0.16*0.84}}{\sqrt{200}}}

z = -1.54

Pvalue:

The pvalue is the probability of finding a sample mean above 0.12, which is 1 subtracted by the pvalue of z = -1.54.

Looking at the z-table, z = -1.54 has a pvalue of 0.0618

1 - 0.0618 = 0.9382

The value of the test statistic and its associated p-value at the 5% significance level are -1.54 and 0.9382, respectively.

6 0
3 years ago
Pls help best answer gets brainest
sashaice [31]

Answer:

0.6

Step-by-step explanation:

Positive is right and Negative is left. Move from 0 right to 1.4 and then move left 0.8 units to end up at 0.6

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Two hot air balloons are traveling on the same path away from town, beginning from different locations at the same time. Henry's
Lina20 [59]

Answer:

ha!

Step-by-step explanation:

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2 years ago
Anyone really good at right triangles and trigonometry? I need help ASAP.
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Can help you w/ your problem
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