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3 years ago

Find the area of the figure

Mathematics

1 answer:

posledela3 years ago

3 0

The answer is approximately 10.39

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Graph f(x) = -x + 6.<br> Click on the graph until the graph of f(x) = -x + 6 appears.<br> YA<br> r

a_sh-v [17]

Answer:

The one that is 0,-3 and 3,0

Step-by-step explanation:

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2 years ago

PLEASE HELP ME FOR EXTRA POINTS AND BRAINLIEST ANWSER

NNADVOKAT [17]

Recall that tanA = sinA / cosA.

Therefore, tanA = (3/5) / (4/5) = 3/4.

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3 years ago

There are 20% more goblins than wizards in the magic club. There are 220 goblins and wizards altogether in the magic club. How m

jok3333 [9.3K]

There are 120 total goblins int the magic club!

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3 years ago

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Damm [24]

-4 no

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3 years ago

The duration of telephone calls directed by a local telephone company: σ = 3.6 minutes, n = 560, 90% confidence. Round your answ

mariarad [96]

Answer:

The margin of error for the confidence interval is of 0.25 minutes.

Step-by-step explanation:

With what we are given, the only thing that this question can be asked is the margin of error for the confidence interval of the mean duration of telephone calls directed by a local telephone company.

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.9}{2} = 0.05$

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 $1-0.05 = 0.95$ , so $z = 1.645$

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.

Using what we are given:

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

$M = 1.645*\frac{3.6}{\sqrt{560}}$

$M = 0.25$

The margin of error for the confidence interval is of 0.25 minutes.

3 0

3 years ago