If you use the pothaorian theorym (A squared + B squared= C squared) youll be able to figure out the right answer is 65.
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Standard Form: ax² + bx + c = 0
- Quadratic Formula:

<u>Algebra II</u>
- Imaginary Numbers: √-1 = i
Step-by-step explanation:
<u>Step 1: Define Equation</u>
x² + 20 = 0
<u>Step 2: Identify Variables</u>
a = 1
b = 0
c = 20
<u>Step 3: Find roots </u><em><u>x</u></em>
- Substitute:

- Exponents:

- Multiply:

- Subtract:

- Factor:

- Simplify:

- Divide:

Answer:
The area of this triangle is.. 
Step-by-step explanation:
6 x 10 divided by 2 = 30
Answer:
Step-by-step explanation:
1. not equivalent
2. not equivalent
3. fully simplified
4.not fully simplified
5. not fully simplified
6. not fully simplified