Yes it is 50 miles per hour
        
             
        
        
        
Sec x is equal to 1/cosx, cot x is equal to cosx/sinx. cos x cancels, and you are left with 1/sinx. this is equal to cscx. Cosecant is : hypotenuse / opposite, so the answer is **D**
        
                    
             
        
        
        
The equation of a circle is: (x - h)² + (y - k)² = radius² where (h, k) is the center. Now just plug in your given information and simplify.
(x - 2)² + (y - 0)² = 9²
Your equation is:
(x - 2)² + y² = 81
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
We can use the FOIL method to expand two multiplied binomials. It states that  . The FOIL method stands for First(first terms) outer(outer terms) inner(inner terms) last(last terms).
. The FOIL method stands for First(first terms) outer(outer terms) inner(inner terms) last(last terms).
So, we can expand our binomials now!
