Answer:
see explanation
Step-by-step explanation:
First we need to convert 600 miles per hour into feet per hour,
which is 
# 3.168e+6
next, divide both by 60 to get feet per minute, then divide by 60 again on both sides to get feet per second
which is 
#880 ft per second
 
        
             
        
        
        
Answer:
True
Step-by-step explanation:
We can sue the pythagorean theorem to verify. 15^2+36^2 should equal the longest side squared or 39^2. If we plug in the numbers, it checks out!
 
        
                    
             
        
        
        
Answer:
-2x^2-8x+4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
the answer is 7
Step-by-step explanation:
the right angle is 90° 
90-55=35
35÷5=7
 
        
                    
             
        
        
        
Square root both sides. The unreduced answer is root 28. Now. To reduce root 28, you need to break it down into factors and hope one of them is a perfect square. 
4*7=28, and 4 is a square number. The square root of 4 is either positive or negative 2. Now that you've found that square, pull it out from under the square root symbol. Under the root symbol, you're left with 7 (not a perfect square).
Therefore, your answer is C