Answer:
f(-2/3) = -1
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
f(x) = 3x + 1
f(-2/3) is x = -2/3
<u>Step 2: Evaluate</u>
- Substitute:                    f(-2/3) = 3(-2/3) + 1
- Multiply:                        f(-2/3) = -2 + 1
- Add:                              f(-2/3) = -1
 
        
             
        
        
        
In this case you can say in one hour Austin earns $7.50. 
 
        
             
        
        
        
Answer:
Mean = 2
Standard deviation = 1.356
Step-by-step explanation:
We are given;
Probability of taxpayers that make mistakes when filling out forms: p = 0.08
Sample size; n = 25 
In binomial distribution;
Means is;
μ = np
Thus;
μ = 25 × 0.08 
μ = 2
Formula for standard deviation here is;
σ = √(np(1 - p)) 
σ = √(25 × 0.08(1 - 0.08))
σ = 1.356