The circumference of any circle is (pi) x (the diameter of the circle).
The problem gives you both numbers, so all you have to do is multiply them.
Circumference = (pi) x (diameter) = (3.14) x (21cm) = <em>65.94 cm .</em>
Answer:
c ≈ 6.08 m
Step-by-step explanation:
Your question is how to solve for a missing side length of a triangle when given 2 sides length and an angle. The side length can be solved using the cosine rule . We use cosine rule to find the length of a side of a triangle when given two sides and an included angle.
The cosine rule formula for finding a side length are as follows
c² = a² + b² - 2ab cosC
b² = a² + c² - 2ac cosB
c² = a² + b² - 2ab cosC
Using cosine rule
c² = 4² + 3² - 2 × 4 × 3 cos 120°
c² = 16 + 9 - 24 cos 120°
c² = 25 - 24 (-0.5)
c² = 25 + 12
c² = 37
square root both sides
c = √37
c = 6.0827625303
c ≈ 6.08 m
Expand: 4x+8-3x+6
simplify: x+14
Answer:
Step-by-step explanation:
Given is a function f(x)
![f(x) = e^x -e^{-\frac{{x}}{2}](https://tex.z-dn.net/?f=f%28x%29%20%3D%20e%5Ex%20-e%5E%7B-%5Cfrac%7B%7Bx%7D%7D%7B2%7D)
We have to analyse and sketch the graph
X intercept : Put y =0, we get x=0
Y intercept: Put x =0 , we get y =0
No exception for x or y and hence set of all real numbers is domain and range.
![f'(x) = (e^x +1/2 e^{-\frac{{x}}{2})](https://tex.z-dn.net/?f=f%27%28x%29%20%3D%20%28e%5Ex%20%2B1%2F2%20e%5E%7B-%5Cfrac%7B%7Bx%7D%7D%7B2%7D%29)
f' becomes 0 not at finite points
So relative extreme
Graph is sketched and attached
Answer:8
Step-by-step explanation: 8x11=88