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The big end from the crankshaft travels in a cicular motion.So you might be looking at equations of a circle,or angular velocity,depending on what you want to know. Since the little end attached to the piston goes up and down ( we say reciprocates)  its position (or more usually the position of the top of the piston - you might know it as top dead centre) can be expressed as a function of time ,usually something like A sin(t + omega)  where t is the time in seconds. 

If you are more specific about the engine speed and length of the piston etc,people on here will be more able to offer help. Should also be able to figure out the forces acting on the gudgeon pin etc.   ( And yes,I do own a motorcycle which I frequently take to pieces.)

Sorry CPhill: I screwed up my "invisible zeros"!!!. I assumed that since 690 is the first subtrahend out of three, I automatically added two zeros in my calculator!!. Thus, 690 should actually be 69000!. Similarly, the second subtrahend of 2,415 should be 24150!. And the third and last should remain 2070 plus the remainder of 1. So that the whole dividend should be:[690 x100] + [2,415 x 10] + 2,070 + 1 =95,221!!!. 

m(4n−7)−2n(m+3)  =

4mn - 7m - 2mn - 6n  =

2mn - 7m - 6n

Calculate the index of refraction:  sin(25)/sin(16.7) ≈ 1.47

This is the index of refraction of Pyrex.

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-4 + 2a = -3    add 4 to both sides

2a  = 1          divide both sides by 2

a  = 1/2

I think the questioner meant "subtrahend" not "substrahend", but the meaning is clear.

Guest.....how is  690 + 2,415 + 2,070 + 1 = 95,221   ?????

Life is what things with heartbeats experience.

The sum of the substrahends and the remainder is equal to the dividend. Hence, the dividend is:690 + 2,415 + 2,070 + 1 =95,221. Since the GCD or GCF of 690, 2,415 and 2,070 is 345, then 345 is the devisor. And the quotient would be:95,221 / 345 = 276 with a remainder of 1.

The diameter represents the diagonal of the square

The length of one side  =   8  / √2  = [ √2 ]⁵  ≈ 5.657 in....as EP found......

Explain this makes no sence

There are infinite answers to this equation...   Without ANOTHER equation relating the variable 'x' and 'y' you cannot find one discrete answer (x,y) to solve this ....       You must have the same number of equations as variables to solve.

the last time I did that much math Electric pavlov, was when i was forced to calculate the amount of big black male organs i could fit in my butt at one time

-4 + 2a = -3   |+4

       2a =  1   | :2

         a=1/2

The diagonal of the square will be the diameter of the circle  8"

the triangle formed will be a right triangle with equal length sides

a^2 + b^2 = 8^2

2a^2 = 8^2

a^2 = 32

a = side length = sqrt32=5.65 inches