Answer:
Step-by-step explanation:
Obtuse
Best regards
Answer:
c:188.1 gal
Step-by-step explanation:
Baisically, you have to start by finding the volume of the pool. You multiply length*width*height(deepness).
3.8*5.5*1.2=25.08 ft^3
To convert from ft to gallons, we have to multiply by 7.5
25.08*7.5=188.1 gal
Yes. 4/1 is the same as 4.
Any number divided by 1 is itself. So 4/1 = 4
We can factor
on the left hand side to get
![\tan(x)(\sec(x)-2)=0](https://tex.z-dn.net/?f=%5Ctan%28x%29%28%5Csec%28x%29-2%29%3D0)
A factored equation equals zero if and only if at least one of the factor equals zero. So, this equation equals zero if and only if
![\tan(x)=0](https://tex.z-dn.net/?f=%5Ctan%28x%29%3D0)
or
![\sec(x)-2=0](https://tex.z-dn.net/?f=%5Csec%28x%29-2%3D0)
In the first case, we have
![\tan(x)=0\iff x=k\pi](https://tex.z-dn.net/?f=%5Ctan%28x%29%3D0%5Ciff%20x%3Dk%5Cpi)
In the second case, we have
![\sec(x)-2=0 \iff \dfrac{1}{\cos(x)}=2 \iff \cos(x)=\dfrac{1}{2}](https://tex.z-dn.net/?f=%5Csec%28x%29-2%3D0%20%5Ciff%20%5Cdfrac%7B1%7D%7B%5Ccos%28x%29%7D%3D2%20%5Ciff%20%5Ccos%28x%29%3D%5Cdfrac%7B1%7D%7B2%7D)
And so, the solutions are
![x=\pm\dfrac{\pi}{3}+2k\pi](https://tex.z-dn.net/?f=x%3D%5Cpm%5Cdfrac%7B%5Cpi%7D%7B3%7D%2B2k%5Cpi)