Answer:
Step-by-step explanation:
Given
Shape: Circle
Required
The area and the circumference (relationship)
This implies that, we write an expression that relates the area and the circumference.
Circumference is calculated as:
Area is calculated as:
The area can be rewritten as:
Further rewrite as:
Recall that:
So, the expression becomes
Answer:
cos(E)=0.8
Step-by-step explanation:
cos(E)=adjacent/hypotenuse
Using a common pythagorean triple, we can find that side GE is 30 (18^2+24^2=30^2)
Then we just get cos(E)=24/30, which is 0.8
Answer:
4.24
Step-by-step explanation:
First, let's set up the equation: 
Next, clear the fraction by multiplying both sides by 2:
Then, subtract 2 from both sides: 
Finally, take a square root of both sides and round: 
(Rounded to the nearest hundredth) 4.24
I don't think those two expressions would even be equal unless w = 0. You can't just add in a 2 from nowhere.
Answer:
Line 2 for part a
The system of equations for part b
and line 1 for part c
Step-by-step explanation:
