If the line down the center is 8 and the diaameter is in the middle then both those sides need to be 8 and so the 6's on both sides of the diameter have to stay they same but they only change a little for 6+6 is 12 but the length gets longer since it moved farther down
answer D 12.5
Graph A is the best hope this helps!!
Answer:
The answer is 3
This triangle is equal to the legs and also angular and by using Pythagoras then

Answer:
a
Step-by-step explanation:
the range is the "y"
The secret formula seems to be: 7 plus 2 plus 2 plus 2...
so 7+2....
but the plus 2 is repeated!
so
7+(2*x)
how many times is it repeated? 7 is the first term, 9 is the second, but it's repeated only once.. so the number of the term -1!
like this:
7+(2*(n-1))