<span>the question is, If m∠D = 18° and m∠C = 45° what is arc BC? your answer is B. 54 degrees </span>
Answer:

On this case n =6 and x =6 we got:

Step-by-step explanation:
The utility for the combination formula is in order to find the number of ways to order a set of elements
For this case we want to find the following expression:

And the general formula for combination is given by:

On this case n =6 and x =6 we got:

Well you have to remember to find the slope you have to use Y2-Y1 over X2-X1 so your answer will be -14 over 1
The expression simplifies to x/y, so the answer is no, it is not a polynomial. The fact that a variable is in the denominator means it's not a polynomial.
X-1.5=21
+1.5 +1.5
x=22.5
22.5-1.5=21 Subtraction sentence