PLEASE help on math! One questioin
1 answer:
Using the polynomial remainder theorem you divide the polynomial by a linear polynomial given as x-r, where r is the value of f(x)
You are given the value of f(x) as 4.
So now you have:
x^4 -2x^3+5x^2 -20x-4 / x-4
Divide
= x^3 +2x^2 +13x +32 +124/x-4
The remainder is the number above the x-4, which is 124.
f(4) = 124
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1,000 times 0.25 = 250
So the answer is $1,000-250=$750
She paid $750 for the car.
There are 18 different possible values for N.
Explanation: 180=2x2x3x3x5
Therefore there are 3x3x2 possibilities.
81 because (a + b)^2 = a^2 + 2ab + b^2
Thus x^2 + 2(9)(x) + (9)^2 = x^2 + 18x + 81
+(-x) = -X
+(-7) = -7
So
6-x+2x-7+2x
Simplifies to
3x-1
So your answer is 3x-1
Hope this helps
