Biology
Biology, 02.11.2019 04:31, ajernandes01

How many routes are there in the ordinary xyz-coordinate system from the origin to the point (i, j, k), where i, j, and k are positive integers, if we are limited to steps one unit in the positive x-direction, one unit in the positive y-direction, or one unit in the positive z-direction?

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Physics, 05.10.2019 04:10, 885122bah
As stated in the strategy, choose a coordinate system where the x axis is horizontal and the y axis is vertical. note that in the strategy, the y component of the projectile's acceleration, ay, is taken to be negative. this implies that the positive y axis is upward. use the same convention for your y axis, and take the positive x axis to be to the right. where you choose your origin doesn't change the answer to the question, but choosing an origin can make a problem easier to solve (even if only a bit). usually it is nice if the majority of the quantities you are given and the quantity you are trying to solve for take positive values relative to your chosen origin. given this goal, what location for the origin of the coordinate system would make this problem easiest? as stated in the strategy, choose a coordinate system where the x axis is horizontal and the y axis is vertical. note that in the strategy, the y component of the projectile's acceleration, , is taken to be negative. this implies that the positive y axis is upward. use the same convention for your y axis, and take the positive x axis to be to the right. where you choose your origin doesn't change the answer to the question, but choosing an origin can make a problem easier to solve (even if only a bit). usually it is nice if the majority of the quantities you are given and the quantity you are trying to solve for take positive values relative to your chosen origin. given this goal, what location for the origin of the coordinate system would make this problem easiest? at ground level below the point where the rock is launched at the point where the rock is released at the point where the rock strikes the ground at the peak of the trajectory at ground level below the peak of the trajectory
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How many routes are there in the ordinary xyz-coordinate system from the origin to the point (i, j,...

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