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3 years ago

When can there be a point equidistant from four different points?

1 answer:

6 0

The center of a circle, because of the constant radius, or the center of a square because all the diagonals are equal. If that's what you're asking?

You might be interested in

Tyler can rake 1/3 of a yard in 1/5 of an hour.How many yards can he rake in one hour?

zzz [600]

Answer:

5/3 yards

Step-by-step explanation:

Write a proportion:

(1/3 yard) / (1/5 hour) = x / (1 hour)

Cross multiply:

1/5 x = 1/3

Solve for x:

x = 5/3

8 0

3 years ago

Suppose that the mean time that visitors stay at a museum is 94.2 minutes with a standard deviation of 15.5 minutes. The standar

Maurinko [17]

Answer:

$94.2 -0.994*3.1 = 91.1186$

$94.2 +0.994*3.1 = 97.2814$

And the 68% confidence interval is given by (91.1186, 97.2814)

Step-by-step explanation:

For this case we know that mean time that visitors stay at a museum is given by:

$\bar X = 94.2$

The standard deviation is given by:

$s= 15.5$

And the standard error is given by:

$SE = \frac{s}{\sqrt{n}} =3.1$

And we want to interval captures 68% of the means for random samples of 25 scores and for this case the critical value can be founded like this using the normal standard distribution or excel:

$z_{\alpha/2}= \pm 0.994$

We can find the interval like this:

$\bar X \pm ME$

And replacing we got:

$94.2 -0.994*3.1 = 91.1186$

$94.2 +0.994*3.1 = 97.2814$

And the 68% confidence interval is given by (91.1186, 97.2814)

7 0

3 years ago

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. The fat

nordsb [41]

The question is really quite easy. You just have to find the distance between the sea level and the point down the water. Make an illustration about the problem to visualize it better. The picture is shown in the attached picture. The distance we want to get is denoted as x. The solution is as follows:

x = 4.7 - 0.5 = 4.2 m

Hope this helps!

4 0

3 years ago

Evaluate

Juli2301 [7.4K]

The answer is b, -54

7 0

3 years ago

F(x) = -x² - 9x - 4 Find f(10)

Natasha_Volkova [10]

-194
F(10)= -(10)^2-9(10)-4=-194

5 0

2 years ago