as the following pic you can see the answer.
#diameter is 8 so radius is 4
Answer:
n = m-a
Step-by-step explanation:
a = m-n
a+n =m
n = m-a

1) Since these triangles are congruent, then we can write out the following for congruent triangles have congruent sides:

2) Still based on that principle, we can plug v=2 into any of those formulas to get the measure of QS and TV. So let's pick the simpler one:

As we can see these segments are congruent.
The graph is falling on the left hand side and rising on the right hand side.
Since the two ends of graph are in opposite direction, the exponent of variable has to be odd. For an even exponent of leading term, the two ends are in same direction.
Since the graph is falling on left and rising on right, this indicates that the coefficient of leading term is positive.
So, the leading term must have:
1) Odd exponent
2) Positive Coefficient
Thus, option Fourth is the correct answer
Answer:
the first equation is (7,-5.9)
the second equation is (3,10.5)
the third equation is (6,9.4)
the fourth equation is (-5,-4.5)