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3 years ago

What is the arithmetic mean between 10 and 250

Mathematics

2 answers:

attashe74 [19]3 years ago

4 0

Answer:

In mathematics and statistics, the arithmetic mean, or simply the mean or average when the context is clear, is the sum of a collection of numbers divided by the number of numbers in the collection. The collection is often a set of results of an experiment, or a set of results from a survey.

Step-by-step explanation:

SSSSS [86.1K]3 years ago

3 0

11 arithmetic mean between 1 and 25 are 30,50,70,90,110,130,150,170,190,210 and, 230

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Geometry :))), please help me

amm1812

Answer:

x = -5

Step-by-step explanation:

Since these two triangles are similar, the ratio between the corresponding lengths of each triangle will be the same.

This means the ratio between one side of each triangle (e.g. AD and DC) will be the same as the ratio between a different side of each triangle (e.g. BE and BC).

So, to create an equation for the sides which contain the unknown 'x', we must first find the ratio between the two sides by using a different set of sides.

On the right side we are given 9 for AD, and 18 for DC.

9/18 = 0.5

This means that the extra length of the larger triangle from the smaller one (AD) is half the length of the smaller triangle (DC). We can use this to make an equation for x:

If AD/DC = 0.5, then BE/EC will also = 0.5

BE = x+23

EC = x+41

Therefore:

$\frac{x+23}{x+41} = 0.5$

Now we can solve by multiplying both sides by x+41 to eliminate the fraction:

$x+23=0.5(x+41)$

Now we multiply out the brackets and move the terms to different sides:

$x+23=0.5x+20.5$

$0.5x = -2.5$

$x = -5$

And if we substitute the -5 into the equations:

-5+23 = 18

-5 + 41 = 36

We will see that -5 does indeed give us the same ratio between the lengths:

18/36 = 0.5

Hope this helped!

4 0

3 years ago

What is the answer to this problem written in scientific notation {3 x 10 ^5} . {3 x 10 ^5}?

Dmitry [639]

Answer:

300000 × 300000

Step-by-step explanation:

You add zeros to the number without the exponent (in this case '3') based on the exponent number (in this case '5').

3 0

3 years ago

Read 2 more answers

According to the school survey,12% of the students at Rockwood Junior High School speak Spanish.There are 36 students at the sch

alexira [117]

Well the answer is 300 hundred students because there is 36 that makes 12% then to find 100% you need to do 12/36= 100/x doing this given x = to 300 total

8 0

3 years ago

I NEED HELPP PLEASEEE!!!!!

oksano4ka [1.4K]

Given:

The side lengths of two cubes are 12 ft and 6 ft.

To find:

The side length of third cube.

Solution:

From the given figure it is clear that the cubes are inclined to each other in such a way so that they form a right angle triangle and side length of third cube is the hypotenuse.

Let x be the side length of the third cube.

Using Pythagoras theorem, we get

$Hypotenuse^2=Base^2+Perpendicular^2$