Hello,
x²/25+y²/9=1
a=5, b=3 c²=a²-b²=25-9=16=4²
Foci are (0,4) and (0,-4)
Answer C
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4√5+9<span>√7
Hope this helps!</span>
        
                    
             
        
        
        
Answer:
so this one could be a little tricky to understand over the computer.Im going to try my best though.
Step-by-step explanation:
Its hard to explain how i got the answer.
im not going to try and do it.
7-5
8-2.5
really hope this helps. :)
 
        
             
        
        
        
Hello!
If he has 15 and gives away 3 he has 12. If he gives away 5 more he will have 7.
I hope this helps!