Find the distance between the points (–1∕2,–8) and (–1∕2,–2). Question 5 options: A) 6 B) 10 C) 8 D) 1∕2

Question

Find the distance between the points (–1∕2,–8) and (–1∕2,–2). Question 5 options: A) 6 B) 10 C) 8 D) 1∕2

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Kim Chi 4 years 2021-07-31T06:11:35+00:00 1 Answers 16 views 0

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  1. thanhcong
    0
    2021-07-31T06:12:59+00:00
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    Answer:

    A) 6

    General Formulas and Concepts:

    Pre-Algebra

    Order of Operations: BPEMDAS

    1. Brackets
    2. Parenthesis
    3. Exponents
    4. Multiplication
    5. Division
    6. Addition
    7. 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 (-1/2, -8)

    Point (-1/2, -2)

    Step 2: Find distance d

    1. Substitute:                    d = \sqrt{(\frac{-1}{2} +\frac{1}{2} )^2+(-2+8)^2}
    2. Add:                              d = \sqrt{(0)^2+(6)^2}
    3. Exponents:                   d = \sqrt{0+36}
    4. Add:                              d = \sqrt{36}
    5. Evaluate:                      d = 6

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )