This has exactly one solution since the lines intersect at only one point. If you have anymore questions about this or anything else let me know! :)
Answer:
Step-by-step explanation:
the third one though i dont know how to explain it
Answer:
a)11cm
b)49.5cm²
Step-by-step explanation:
to find the perimeter you use the formula
o/360×2piR
since 2pi R=18pi cm,to find the radius you cancel pi from both sides 2r/2=18/2...so the radius is 9cm
therefore the perimeter will be:
70/360×2×22/7×9
27720/2520
=11cm
then to find the area you say
o/360×pi R²
70/360×22/7×9²
124740/2520
=49.5cm²
I hope this helps
So remember some exponentional laws
![x^{m/n} = \sqrt[n]{x^m}](https://tex.z-dn.net/?f=x%5E%7Bm%2Fn%7D%20%3D%20%5Csqrt%5Bn%5D%7Bx%5Em%7D)
and
so
4 to the 6th root=4^(1/6)
4 to the 3rd root=4^(1/3)
so
and
![4^{-1/3}= \frac{1}{4^{1/3}}= \frac{1}{ \sqrt[3]{4} }](https://tex.z-dn.net/?f=%204%5E%7B-1%2F3%7D%3D%20%5Cfrac%7B1%7D%7B4%5E%7B1%2F3%7D%7D%3D%20%5Cfrac%7B1%7D%7B%20%5Csqrt%5B3%5D%7B4%7D%20%7D%20%20%20)
the answer is
![\frac{1}{ \sqrt[3]{4} }](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B%20%5Csqrt%5B3%5D%7B4%7D%20%7D%20)
