Answer:
2y = x+6 is the answer
please mark brainiest
Step-by-step explanation:
Answer:
i dont know anything about simplest radical form but this is the length 17.32051
Step-by-step explanation:
Answer:
x = 30
Step-by-step explanation:
![\frac{x}{6} +1=6\\\\\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}\\\frac{x}{6}+1-1=6-1\\\\Simplify\\\frac{x}{6}=5\\\\\mathrm{Multiply\:both\:sides\:by\:}6\\\frac{6x}{6}=5\times\:6\\\\Simplify\\x=30](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B6%7D%20%2B1%3D6%5C%5C%5C%5C%5Cmathrm%7BSubtract%5C%3A%7D1%5Cmathrm%7B%5C%3Afrom%5C%3Aboth%5C%3Asides%7D%5C%5C%5Cfrac%7Bx%7D%7B6%7D%2B1-1%3D6-1%5C%5C%5C%5CSimplify%5C%5C%5Cfrac%7Bx%7D%7B6%7D%3D5%5C%5C%5C%5C%5Cmathrm%7BMultiply%5C%3Aboth%5C%3Asides%5C%3Aby%5C%3A%7D6%5C%5C%5Cfrac%7B6x%7D%7B6%7D%3D5%5Ctimes%5C%3A6%5C%5C%5C%5CSimplify%5C%5Cx%3D30)
Answer:
![d = \frac{C}{\pi}](https://tex.z-dn.net/?f=d%20%3D%20%5Cfrac%7BC%7D%7B%5Cpi%7D)
Step-by-step explanation:
![C= \pi d\\](https://tex.z-dn.net/?f=C%3D%20%5Cpi%20d%5C%5C)
Isolate d ; Divide both sides of the equation by ![\pi](https://tex.z-dn.net/?f=%5Cpi)
![\frac{C}{\pi} = \frac{\pi d}{\pi }](https://tex.z-dn.net/?f=%5Cfrac%7BC%7D%7B%5Cpi%7D%20%3D%20%5Cfrac%7B%5Cpi%20d%7D%7B%5Cpi%20%7D)
Simplify
![\frac{C}{\pi} = d\\\\d = \frac{C}{\pi}](https://tex.z-dn.net/?f=%5Cfrac%7BC%7D%7B%5Cpi%7D%20%3D%20d%5C%5C%5C%5Cd%20%3D%20%5Cfrac%7BC%7D%7B%5Cpi%7D)
Note; Another formula for d(diameter) =
![2\times radius](https://tex.z-dn.net/?f=2%5Ctimes%20radius)
<span>exact value of sin 157.5 without using a calculator
sin(157.5)=sin(315/2)
Identity: sin(x/2)=±√[(1-cosx)/2]
select positive identity since 175 is in the 2nd quadrant where sin>0
sin(315/2)=√[(1-cos315)/2]
cos 315=cos45 in quadrant IV=√2/2
sin(315/2)=√[(1-√2/2)/2]=√[(2-√2)/4]=√(2-√2)/2
sin(157.5)=√(2-√2)/2
check using calculator:
sin157.5º≈0.382...
√(2-√2)/2≈0.382...</span>