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2 years ago

Find the geometric mean of 8 and 253.

Mathematics

1 answer:

sveta [45]2 years ago

5 0

The geometric mean of 8 and 253 is;

<h3>Geometric mean of numbers</h3>

According to the question;

The task requires that the geometric mean of 8 and 253 be determined.

The geometric mean of a two numbers is the square root the product of the he numbers.

Hence, in this scenario;

The geometric mean of 8 and 253 is;

G.M = √8×253

G.M = √2024

G.M = 45.

Ultimately, the geometric mean of 8 and 253 is approximately 45.

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What is 30=-5(6n+6) im confused

Flauer [41]

Answer:

Step-by-step explanation:

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60 = -30n....divide both sides by -30

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3 years ago

A random sample of 121 automobiles traveling on an interstate showed an average speed of 73 mph. from past information, it is kn

tatiyna

121 is big enough to assume normality and not worry about the t distribution. By the 68-95-99.7 rule a 95% confidence interval includes plus or minus two standard deviations. So 95% of the cars will be in the mph range

$(73 - 2 \cdot 11, 73 + 2 \cdot 11) = (51,95)$

The question is a bit vague, but it seems we're being asked for the 95% confidence interval on the average of 121 cars. The 121 is a hint of course.

The standard deviation of the average is in general the standard deviation of the individual samples divided by the square root of n:

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So repeating our experiment of taking the average 121 cars over and over, we expect 95% of the averages to be in the mph range

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That's probably the answer they're looking for.

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3 years ago

A density curve of all the possible ages between 0 years and 25 years is in the shape of a triangle. What is the height of the t

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Answer:

Step-by-step explanation:

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The formula for the area of a triangle is A = (1/2)(base)(height).

Here the base is 25 units. Thus, A = 1 unit^2 = (1/2)(25 units)(height), or, after multiplying both sides of this equation by 2:

2 units^2 = ( 25 units)(height)

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3 years ago

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Step-by-step explanation:

Formula used to find volume of cone is:

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In the given question we are given:

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diameter d= 6 cm

We know radius r = d/2 = 6/2 = 3 cm

so, volume will be:

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3 years ago

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Answer:

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3 years ago

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