What you would do to “simplify” the equation is 18000-100 then divide by 50. The answer would be 358. Hoped this helped!
Answer:
I think that the correct answer is B. 29k + 4
Answer:
(√2 - √6) / 4
C. square root of two minus square root of six divided by four.
Step-by-step explanation:
sine of negative eleven pi divided by twelve.
We have :
sin(-11π/12)
sin((4 - 15)π / 12) = sin(4π/12 - 15π/12)
sin(4π/12 - 15π/12) = sin(π/3 - 5π/4)
Recall:
Angle difference formula:
sin(A - B) = sinAcosB - sinBcosA
Hence,
sin(π/3 - 5π/4) = sin(π/3) cos(5π/4) − sin(5π/4) cos(π/3)
From trigonometry:
sinπ/3 = √3/2
cos5π/4 = -√2/2
sin5π/4 = -√2/2
cos π/3 = 1/2
(√3/2) (-√2/2) − (-√2/2) (1/2)
-√6/4 - -√2/4
-√6/4 + √2/4
√2/4 - √6/4
(√2 - √6) / 4
Height of the water increasing is at rate of ![#(dh)/(dt)=3/(25 pi)m/(min)#](https://tex.z-dn.net/?f=%23%28dh%29%2F%28dt%29%3D3%2F%2825%20pi%29m%2F%28min%29%23)
<h3>How to solve?</h3>
With related rates, we need a function to relate the 2 variables, in this case it is clearly volume and height. The formula is:
![#V=pi r^2 h#](https://tex.z-dn.net/?f=%23V%3Dpi%20r%5E2%20h%23)
There is radius in the formula, but in this problem, radius is constant so it is not a variable. We can substitute the value in:
![#V=pi (5m)^2 h#](https://tex.z-dn.net/?f=%23V%3Dpi%20%285m%29%5E2%20h%23)
Since the rate in this problem is time related, we need to implicitly differentiate wrt (with respect to) time:
![#(dV)/(dt)=(25 m^2) pi (dh)/(dt)#](https://tex.z-dn.net/?f=%23%28dV%29%2F%28dt%29%3D%2825%20m%5E2%29%20pi%20%28dh%29%2F%28dt%29%23)
In the problem, we are given
So we need to substitute this in:
![#(dh)/(dt)=(3m^3)/(min (25m^2) pi)=3/(25 pi)m/(min)#](https://tex.z-dn.net/?f=%23%28dh%29%2F%28dt%29%3D%283m%5E3%29%2F%28min%20%2825m%5E2%29%20pi%29%3D3%2F%2825%20pi%29m%2F%28min%29%23)
Hence, Height of the water increasing is at rate of ![#(dh)/(dt)=3/(25 pi)m/(min)#](https://tex.z-dn.net/?f=%23%28dh%29%2F%28dt%29%3D3%2F%2825%20pi%29m%2F%28min%29%23)
<h3>Formula used: </h3>
![#V=pi r^2 h#](https://tex.z-dn.net/?f=%23V%3Dpi%20r%5E2%20h%23)
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