Answer:
a/2+2
Step-by-step explanation:
Adding the 2 equations you get
2x=a+4 (divide by 2 so find x)
x=
a/2+2
Answer:
f(3) = -15
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Functions
- Function Notation
Step-by-step explanation:
<u>Step 1: Define</u>
f(x) = -2x² + 3x - 6
f(3) is x = 3 for the function f(x)
<u>Step 2: Evaluate</u>
- Substitute in <em>x</em> [Function]: f(3) = -2(3)² + 3(3) - 6
- Exponents: f(3) = -2(9) + 3(3) - 6
- Multiply: f(3) = -18 + 9 - 6
- Add: f(3) = -9 - 6
- Subtract: f(3) = -15
110° because interior angles are half the measure of their arc
