Answer:
We need to add the expression: 
Step-by-step explanation:
As the first step, add the first two polynomials listed in order to find what their sum is. Do such by combining like terms:

now, you need to find another polynomial (let's call it P(x)) such that added to the one we just found above, will render
as a result.
Putting this phrase in mathematical terms, we write:

Now we solve for this unknown P(x) in this equation, by subtracting each of the terms that are accompanying it on the left side of the equation. We do one at a time for clarity:

Therefore, the expression we need to add is: 
Answer:
A
Step-by-step explanation:
In (4,5) the difference between 5 and 4 is 1, the same applies for (8,9), therefore y=x+1 is a linear function of y=x+1
So using this function: (1,2),(2,3),(3,4)(4,5) etc
Answer:
285
Step-by-step explanation:
The total amount of degrees in a circle is 360, we know that the un-shaded portion of the circle is 90 degrees this means that the shaded portion has 270 degrees.
We also know that the area of the circle is
but we are finding a portion of that, therefore we would need to multiply it by
. The radius is also given which is 11.
Area of the shaded region =
= 285
Answer:
interest earned: $105
balance of the account: $455
Step-by-step explanation:
Answer: 69
Step-by-step explanation:
The two angles are a linear pair, which means that they lie on the same line. Therefore, you just have to substract angle 1 with 180.
180-111=69