5 dollars per hour 
because 15 divided by 3 is 5.
        
                    
             
        
        
        






We can rule out the negative length.

Answer: b=4, h=18
 
        
                    
             
        
        
        
The formula you need to know is that the side opposite of the 30° angle is always half the hypotheneus. For example in question 2 X should be 6 since 3 is opposite side of the angle 30°. In a 45 45 90 triangle, it is important to know that the straight sides are always the same length (since they are the same angle). For example in question 9, v is also 9√2. 
When you have two sides, you can figure out the third side with a² + b² = c² since they are all right triangles. Good luck
 
        
             
        
        
        
The equation of any given circle is:

where (h, k) is the center and r is the radius.
In the problem, we are given the center, and the radius. When we plug them in:

we got the formula of the circle.
 
        
        
        
Answer:
315 miles
Step-by-step explanation:
90 times 3 plus 45