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:

Step-by-step explanation:
<u>Step 1: Define equation</u>
2x² + 4x = 30
<u>Step 2: Rewrite into Standard Form</u>
2x² + 4x - 30 = 0
<u>Step 3: Define variables</u>
a = 2
b = 4
c = -30
<u>Step 4: Solve for </u><em><u>x</u></em>
- Substitute:

- Evaluate:

- Multiply:

- Add:

- Evaluate:

- Factor:

- Divide:

- Add/Subtract:

And we have our final answer!
As the spinner is spun twice the order pairs which have a product less than 14 and contain at least one odd number are ( 2,3), ( 2,5), ( 3,2), ( 3,3), ( 5,2)
= 5 order pairs
Option B is correct
Note: see the attached image to comprehend how we find order pair( for beginner <span />
X = 15
Explanation:
9x = -135
Divide by 9 on both sides
X = -15
It is -15 since 135 is negative
Answer:
Step-by-step explanation:
hello :
Y=x+8
Y=-4x-12
-4x-12 = x+8
-5x = 20
x = -4
but : y=x+8
so : y=-4+8 = 4