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# What is direct square variation?

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Posted on Feb 15, 2012

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## Related Questions:

### How do i solve direct variation

Direct variation is when the line goes through the origin (0,0). Thus, the equation of a line with direct variation is y=mx, since y=mx + b, but b is equal to 0.

Good luck.

Paul

Dec 16, 2014 | Office Equipment & Supplies

### What is the average rate of change for 5x+4

The rate of change for the function y=5x+4 is the coefficient 5 that multiplies the independent variable x. For a unit variation of x (x varies by 1) y varies by 5 units.
Between x1=2 to x2=3, y varies from y1=5*2+4=14 to y2=5*3+4=19.
The rate of change is defined as
(variation in y)/(variation in x)=(19-14)/(3-2)=5

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### My Pro-Form 770 EKG changes speed without direction from users. Any?

HI,
You have to check the speed sensor near the mottor pully. If the speed sensor is fulty or if its coverd with dust then speed can vary. Another reson for speed variation is the Faulty carbon brush in the motor. I have added the picture of speed sensor for reffarance . Also the link will help you for the regular maintenance of the treadmill.

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### If y varies directly as the square of x,and y=24 when x=4,find the constant of variation

y varies directly as the square of x means:

y = kx^2

Where,

k is the constant of variation. You can use any letter except y or x for constant

Put values of y and x: (24) = k * (4)^2

k = 24/(4*4) = 24/16 = 3/2 = 1.5

Answer: The constant of variation is 1.5

Nov 04, 2010 | Computers & Internet

### The stopping distance d of a car after the brakes are applied varies directly as the square of the speed r. If a car traveling 40 mph car stop in 90ft, how many feet will it take the same car to stop when...

The stopping distance is proportional to square of speed.

that is 90ft proportional to 40^2 mph.

We can write as 90 = X * 40^2. ( X is a constant of proportionality) .

Which implies X = 90 / 1600 = .05625.

Assume S be the distance at which car stops when the speed is 90 mph.

S = X * 90^2. ( since X does not vary as same car is used)

=> S =.05625 * 8100 = 455.625 ft.

Thank you.

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Over what period of time did this variation occur?

The freezer should have an automatic defrost cycle. The temperature will rise while it is going through this cycle.

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### Whats rms on legacy la1490

http://en.wikipedia.org/wiki/Root_mean_square
In mathematics, the root mean square (abbreviated RMS or rms), also known as the quadratic mean, is a statistical measure of the magnitude of a varying quantity. It is especially useful when variates are positive and negative, e.g., sinusoids.
However, the term "RMS power" is sometimes used in the audio industry as a synonym for "mean power" or "average power". For a discussion of audio power measurements and their shortcomings, see Audio power.
http://en.wikipedia.org/wiki/Audio_power

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You bet....Pressure at the building varys with large use...8-10am or 4-6 pm....What floor you on...Higher the more pressure you need...maybe a pump...or plugged press.balance system....Not a novice handyman job...

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