It would be D because when adding them together the only one that makes sense would be D. adding the exponents 5+4 = 9 so it would be 10^9
        
                    
             
        
        
        
<span>3. Two isosceles right triangles
Every square has 4 right angles, so each triangle will have one right triangle, which makes the triangles, right triangles. 
They are isosceles because all sides of the square are the same, though the diagonal is not.
Hope this helps :)
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Answer:
is there supposed to be a picture that goes with this 
Step-by-step explanation:
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It’s A I’m pretty sure it’s right