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3 years ago

Can somebody please ..

Mathematics

1 answer:

worty [1.4K]3 years ago

5 0

Answer:

Concept: Graph Analysis

We must look for a negative function that crosses the y-axis at 4.
Hence the Blue line

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Anarel [89]

Answer:

choice 1) circumference = 87.92 in

Step-by-step explanation:

(14)(2)(3.14) = 87.92 in

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3 years ago

((((40 - -30) x (20 +15 - -2))+14)/2)-40<br><br><br> 100 points pls help

Aleks04 [339]

Step-by-step explanation:

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3 years ago

Ben is 4 times as old as Ishaan. 6 years ago, Ben was 6 times as old as Ishaan

Svetlanka [38]

Answer:

The correct answer is - Ben is 8.

Since Ben is 4 times older than Ishaan, but also we know the fact that Ben is 6 years older than Ishaan, that leaves us with only one number as the possible solution, the number 8.

In order to get to the result we should find a number that multiplied by four and summed up with six, gives the same result.

4 x 2 = 8

2 + 6 = 8

Knowing now that the age of Ben is 8, we can also conclude that the number used for multiplying and summing, 2, is the number that represents the age of Ishaan.

Step-by-step explanation:

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3 years ago

A sales and marketing management magazine conducted a survey on salespeople cheating on their

Alenkinab [10]

Answer:

The 95% confidence interval estimate of the population proportion of managers who have caught salespeople cheating on an expense report is (0.5116, 0.6484).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

In the survey on 200 managers, 58% of the managers have caught salespeople cheating on an expense report.

This means that $n = 200, \pi = 0.58$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.58 - 1.96\sqrt{\frac{0.58*0.42}{200}} = 0.5116$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.58 + 1.96\sqrt{\frac{0.58*0.42}{200}} = 0.6484$

The 95% confidence interval estimate of the population proportion of managers who have caught salespeople cheating on an expense report is (0.5116, 0.6484).

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3 years ago

The distinct lines a, b, c, and d are in the same plane. Tell how a and d relate. Justify your answer.

daser333 [38]

Answer:

Step-by-step explanation:

if a is perp to b, and b is parallel to c, and c is parallel to d, then a is perp to d

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3 years ago