<h3>
The constant of proportionality is k = 5</h3>
For direct proportion equations, you divide the y value over its corresponding x value to get the value of k.
For example, the point (x,y) = (2,10) is on the diagonal line. So k = y/x = 10/2 = 5.
Another example: the point (x,y) = (6, 30) is also on the same diagonal line, so k = y/x = 30/6 = 5 is the same result as before.
You can use any point on the diagonal line as long as it is not (0,0). This is because division by zero is not allowed.
side note: the direct proportion equation y = k*x becomes y = 5*x which is the graph of that diagonal line. The slope is m = 5, the y intercept is b = 0. All direct proportion graphs go through the origin as shown in the diagram.
13/107 can't be simplified but in decimal form it would be 0.121495327103.
Answer:
0
Step-by-step explanation:
Given that,
6m - 2n=0
=>6m=2n
=>n=3m [divide both side by 2]
& mn=12
Now,
216c - 8n³
= 216m³- 8(3m)³
=216m³- 8 .27m³
=216m³- 216m³
=0
Answer:
Proof in explanation.
Step-by-step explanation:
I'm going to attempt this by squeeze theorem.
We know that
is a variable number between -1 and 1 (inclusive).
This means that
.
for all value
. So if we multiply all sides of our inequality by this, it will not effect the direction of the inequalities.
![-x^4 \le x^4 \cos(\frac{2}{x}) \le x^4](https://tex.z-dn.net/?f=-x%5E4%20%5Cle%20x%5E4%20%5Ccos%28%5Cfrac%7B2%7D%7Bx%7D%29%20%5Cle%20x%5E4)
By squeeze theorem, if ![-x^4 \le x^4 \cos(\frac{2}{x}) \le x^4](https://tex.z-dn.net/?f=-x%5E4%20%5Cle%20x%5E4%20%5Ccos%28%5Cfrac%7B2%7D%7Bx%7D%29%20%5Cle%20x%5E4)
and
, then we can also conclude that
.
So we can actually evaluate the "if" limits pretty easily since both are continuous and exist at
.
![\lim_{x \rightarrow 0}x^4=0^4=0](https://tex.z-dn.net/?f=%5Clim_%7Bx%20%5Crightarrow%200%7Dx%5E4%3D0%5E4%3D0)
.
We can finally conclude that
by squeeze theorem.
Some people call this sandwich theorem.