The supplement of 30° is the angle that when added to 30° forms a straight angle (180° ).
Answer: I know 12 is right
Step-by-step explanation:
Answer:
-11
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
x² + 9x + 3
x = -2
<u>Step 2: Evaluate</u>
- Substitute in <em>x</em>: (-2)² + 9(-2) + 3
- Exponents: 4 + 9(-2) + 3
- Multiply: 4 - 18 + 3
- Subtract: -14 + 3
- Add: -11
2442
2+4+4+2=12
3333
3+3+3+3=12
1551
1+5+5+1=12
4224
4+2+2+4=12
5115
5+1+1+5=12
6006
6+0+0+6=12
The answer is 6