Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
<u>Algebra I</u>
- Standard Form: ax² + bx + c = 0
- Quadratic Formula:

<u>Algebra II</u>
- Imaginary Roots: √-1 = i
- Standard Form: a + bi
Step-by-step explanation:
<u>Step 1: Define</u>
-4x² - 4x - 9 = 0
a = -4
b = -4
c = -9
<u>Step 2: Find roots</u>
- Substitute:

- Exponents:

- Multiply:

- Subtract:

- Factor:

- Simplify:

- Factor:

- Divide:

- Expand:

- Simplify:

- Evaluate:

Put this into slope intercept form.
y = 6 - x becomes y = -x + 6
"m" is the coefficient on x: -1
"c" is the number without the x: 6
The answer will be 46,200 Hopes this helps. :)
Supreme sold 29 tires. Set it up like this, with Supreme as your x and Prestige as y: 48x + 56y = 2008. This is an equation in terms of money, with x being the number of Supreme tires sold at $48 each and y being the number of Prestige tires sold at $56 each. We know that Prestige sold 11, so sub it for y and do the math: 48x = 2008 - 616; x = 29
35, 42, and 49 jagskahskahslahslabajak