Circumference = 2πr
Circumference = 2*5 * π
Circumference = 10π or 31.4 cm
Area = πr^2
Area = π * 5^2
Area = π * 25
Area = 78.5 square cm.
I used 3.14 for PI
Answer:
B
Step-by-step explanation:
It has been given that y varies inversely with x, therefore the equation for this relationship is as follows;
y =
![\frac{k}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bk%7D%7Bx%7D%20)
\
when y = -18 and x = 6
-18 = k/ 6 ---1)
We need to find x when y = 5
5 = k/x
when we divide 1)/2), k gets cancelled
![\frac{-18}{5}= \frac{x}{6}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-18%7D%7B5%7D%3D%20%20%5Cfrac%7Bx%7D%7B6%7D%20%20)
x = -18*6/5
x = -21.6
when y = 5, then x = -21.6
Answer:
Step-by-step explanation:
take 40 degree as reference angle
using cos rule
cos 40=adjacent/hypotenuse
0.76=5/x
0.76x=5
x=5/0.76
x=6.578
x=6.58