You can perform all kind of operation that are one the inverse of the other, so that the value won't change. For example, you can multiply and divide by 2:
![\dfrac{1}{2}(2(x-13))](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B2%7D%282%28x-13%29%29)
Or add and subtract 5:
![\left(\dfrac{1}{2}(2(x-13))+5\right)-5](https://tex.z-dn.net/?f=%5Cleft%28%5Cdfrac%7B1%7D%7B2%7D%282%28x-13%29%29%2B5%5Cright%29-5)
Hello!
As you can see, we have a radius of 6. If we divide, this means that this is 2.5 radians. To convert radians to degrees we use the formula below.
![\frac{180}{ \pi }x](https://tex.z-dn.net/?f=%20%5Cfrac%7B180%7D%7B%20%5Cpi%20%7Dx)
First of all we divide 180 by pi.
180/
![\pi](https://tex.z-dn.net/?f=%20%5Cpi%20)
≈57.3
Now we multiply by 2.5
57.3(2.5)=143.25°
Note that the angle we see is obtuse, or greater than 90°.
Therefore, ∠<span>θ</span>≈143.25°
Now we need to convert this back into radians. This can be represented by the equation below.
![\frac{ \pi }{180}x](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Cpi%20%7D%7B180%7Dx%20)
First we divide pi by 180 then multiply by our angle.
![\pi](https://tex.z-dn.net/?f=%20%5Cpi%20)
/180(143.25)≈2.5
Therefore, our angle theta is about
2.5 radians.
I hope this helps!
Answer:
The whole tank cost $55.13
Step-by-step explanation:
All you have to do is multiply the fraction and cost, to ge thte total cost
15 3/4 also equals 15.75 (it will be easier to multiply two fractions)
now each gall of the 15.75 costs 3.50 so we multiply the number of gallons by the cost
15.75 x 3.50 = 55.125
but now we must round since there isnt .125 cents
so
55.13 is the cost
2x3x2 witch equals 12 so there are 12 different furniture sets