Answer:
Given the statement: Crater Lake in Oregon in shaped like a circle with a diameter of about 5.5 miles. 
Area of circle is given by:

where 
A represents the area of a circle
d represents the diameter of a circle.
then;
It is given that Surface of Crater lake is shaped like a circle.
Substitute the given values, we have;
Area of a circle = 
 = 
 square miles
therefore, the area of a surface of a crater lake is, 23.74625 square miles.
 
        
             
        
        
        
Answer: 105 miles
Step-by-step explanation:
You can write an equation for this problem and solve it.
32 miles=1/3x-3, where x is equal to the total length of the highway.
35=1/3x, and then you multiply by 3, to get x=105
 
        
             
        
        
        
A= 4 B= 2 C= -1 
follow the formula ax^2 + bx + c= 0.
        
             
        
        
        
Answer:
Megan has 35.00 dollars.
Step-by-step explanation:
Divide 86.00 by 2 which equals 43.00.  Next, minus 8 from the 43.00 and you will get what Megan has.  Megan has 35.00 dollars.
I hope this helps!
 
        
             
        
        
        
Answer:
Test statistic:
z = (0.67 - 0.63) / 0.033 = 1.21
p - Value = P(z > 1.21) = 0.106
My conclusion: Fail to reject null hypothesis
No, there is no evidence of a difference