Answer:
A and B and E
Step-by-step explanation:
because u always double check
Answer:
Step-by-step explanation:I don't say u must have to mark my ans as brainliest but if it has really helped u plz don't forget to thank me...
Yes he is right because the triangle has a 90 degree angle in the corner making it a right triangle
(10-5r)^2=(10-5r)(10-5r) or
25r^2-100r+100
divide the whole thing by 5 and get
5(5r^2-20r+20)
divide the whole thing by 5 again
25(r^2-4r+4)
factor by finding what two numbers add to get -4 and multiply to get 4 (-2 and -2 work)
r^2-4r+4=(r-2)(r-2) or 25((r-2)^2)