**Answer:**

3x - 9 - (6 / (x+4))

**Step-by-step explanation:**

3x - 9

|----------------------------------------

(x +4) | (3x^2 + 3x - 42 )

3x^2 + 12x

------------------------------

-9x - 42

-9x - 36

-----------------------------------

- 6

Answer: 3x - 9 - (6 / (x+4))

**Answer:**

8

**Step-by-step explanation:**

RT=10 it is on number A

XY=18 it is on number B

YZ=12 it is on number C

So, I think that no D 8 is in last so that is the answer.

Answer:

Step-by-step explanation:

Volume of a cone= ⅓πr²h

=⅓×3.142×5²×6

= 157cm²

The anwser is 526 because u have 5 hundreds and u have 6 ten thousands 2 ones

Recall that the vertex form of a quadratic function (or parabolic function) is equal to

Now, given that we have f(x) = x² + 14x + 40, to express f into its vertex form, we must first fill in the expression to form a perfect square.

One concept that we must remember when completing the square is that

(a + b)² = a² + 2ab + b²

So, to complete the square for (x² + 14x + ____), we have 2ab = 14 where a = 1. Thus, b = 14/2 = 7. Hence, the last term of the perfect square must equal to 7² = 49.

So, going back to the function, we have

Thus, we have derived the vertex form of the function.

**Answer: f(x) = (x + 7)² - 9**