Answer:
[tex]d = 15.0[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Algebra II
- Distance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Step-by-step explanation:
Step 1: Define
Point C (7, -4)
Point D (-8, -5)
Step 2: Find distance d
- Substitute [DF]: [tex]d = \sqrt{(-8-7)^2+(-5+4)^2}[/tex]
- Subtract/Add: [tex]d = \sqrt{(-15)^2+(-1)^2}[/tex]
- Exponents: [tex]d = \sqrt{225+1}[/tex]
- Add: [tex]d = \sqrt{226}[/tex]
- Evaluate: [tex]d = 15.0333[/tex]
- Round: [tex]d = 15.0[/tex]