Solve this quadratic equation by completing the square.

x^2 + 6x = 18

Step-by-step explanation:

Use formula

To add a third new term and factor to find the answer. Example

Which equal 9. so our equation look like

The only number that multiply to 9 and add up to 6 is 3. So we write our equation like this.

Take the sqr root of both sides

Subtract 3 from both sides

Since a sqr root of a number can be positive or negative, the answer is

or

answer is d-29

step-by-step explanation:

since you didn't include the picture, i can give you the description so you know how to pick the correct answer. the third quartile of a data is always shown in a box plot. in the middle of your graph should be a box. the third quartile is the value that goes with the far right edge of the box.

28

step-by-step explanation:

because that's the answer