I'm guessing you want to know the circumference of a circle with a 20 yard radius or circumference?
circumference = 2 * PI * radius = 2 * PI * 20 =
<span>
<span>
<span>
125.66</span></span></span>
circumference = PI * diameter = PI * 20 =
<span>
<span>
<span>
62.83</span></span></span>
Answer:
x= -5-
/4, - 5+
/4
Step-by-step explanation:
solve the equation for x by finding a,b, and c of the quadratic then applying the quadratic formula (the full thing under "answer:" is the exact answer
7,,,,,,,,,,,,,,,,,,,,please help
Goryan [66]
Answer:
1
Step-by-step explanation:
The given expression is
![\frac{2^{\frac{11}{2} }\times 2^{-7}\times 2^{-5}}{2^3\times 2^{\frac{1}{2} }\times 2^{-10}}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5E%7B%5Cfrac%7B11%7D%7B2%7D%20%7D%5Ctimes%202%5E%7B-7%7D%5Ctimes%202%5E%7B-5%7D%7D%7B2%5E3%5Ctimes%202%5E%7B%5Cfrac%7B1%7D%7B2%7D%20%7D%5Ctimes%202%5E%7B-10%7D%7D)
Recall and use
![a^m\times a^n=a^{m+n}](https://tex.z-dn.net/?f=a%5Em%5Ctimes%20a%5En%3Da%5E%7Bm%2Bn%7D)
![\frac{2^{\frac{11}{2} -7-5}}{ 2^{3+\frac{1}{2} -10}}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5E%7B%5Cfrac%7B11%7D%7B2%7D%20-7-5%7D%7D%7B%202%5E%7B3%2B%5Cfrac%7B1%7D%7B2%7D%20-10%7D%7D)
![\frac{2^{-\frac{13}{2}}}{ 2^{-\frac{13}{2}}}](https://tex.z-dn.net/?f=%5Cfrac%7B2%5E%7B-%5Cfrac%7B13%7D%7B2%7D%7D%7D%7B%202%5E%7B-%5Cfrac%7B13%7D%7B2%7D%7D%7D)
Same bases are dividing, so we write one base and subtract the exponent.
![2^{-\frac{13}{2}+\frac{13}{2}}](https://tex.z-dn.net/?f=2%5E%7B-%5Cfrac%7B13%7D%7B2%7D%2B%5Cfrac%7B13%7D%7B2%7D%7D)
![2^0=1](https://tex.z-dn.net/?f=2%5E0%3D1)