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Mathematics

1 answer:

gayaneshka [121]2 years ago

7 0

Answer:

$d = \sqrt{13}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra II

Distance Formula: $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Step 1: Define

Point A (-2, 1)

Point B (1, -1)

Step 2: Find distance d

Substitute: $d = \sqrt{(1+2)^2+(-1-1)^2}$
Add/Subtract: $d = \sqrt{(3)^2+(-2)^2}$
Exponents: $d = \sqrt{9+4}$
Add: $d = \sqrt{13}$

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