90°+b+b =180
90°+ 2b=180
2b=180-90
2b= 90
<u>2</u><u>b</u><u>=</u><u>9</u><u>0</u>
<u>2</u> = 2
b=45° 
ave tried I don't know if its correct 
 
        
             
        
        
        
Answer:
P(X=3cars) = 0.052
P(X>3 cars) = 0.00638
Step-by-step explanation:
In total there are 7 cars per hour.
Using formulae for geometric Probability 
P(X=3) = (7^3×e-7)/3! = 0.0521
P(X>3cars) = (7^2× e-7)/2! = 
P(X>3) = 0.0128/2×1 =0.00638
 
        
             
        
        
        
Answer: Try 21
Step-by-step explanation:
 
        
             
        
        
        
Answer:
10
Step-by-step explanation:

Therefore, the number is 10
 
        
             
        
        
        
Since the area of a square is side squared, you can find the length of each side by finding the square root of the area, which is 5. Since there are four sides in a circle, just multiple 5 by 4 and your answer is 20 units.