The map of a walking trail is drawn on a coordinate grid with three points of interest. The trail starts at R(−3, 2) and goes to S(2,

Question

The map of a walking trail is drawn on a coordinate grid with three points of interest.
The trail starts at R(−3, 2) and goes to S(2, 2) and continues to T(2, −5). The total length of the walking trail is ____ units. (Input whole numbers only.)

PLEASEE HELPPPP!!!!!!!!

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Mít Mít 5 years 2021-07-26T19:10:57+00:00 1 Answers 95 views 1

Answers ( )

  1. RuslanHeatt
    1
    2021-07-26T19:12:07+00:00
    Reply

    Answer:

    12 units

    Step-by-step explanation:

    Given the points :

    R(−3, 2) – – – > S(2, 2) – – – – > T(2, −5).

    Distance between R and S

    Distance between two points is obtained thus :

    D = sqrt((x2 – x1)^2 + (y2 – y1)^2)

    Distance between R and S

    x1 = – 3 ; y1= 2 ; x2 = 2 ; y2 = 2

    D1 = sqrt((2 – (-3))^2 + (2 – 2)^2)

    D1 = sqrt((5^2 + 0^2))

    D1 = sqrt(25)

    D1 = 5

    Distance between S and T

    x1 = 2 ; y1= 2 ; x2 = 2 ; y2 = – 5

    D2 = sqrt((2 – 2)^2 + (-5 – 2)^2)

    D2 = sqrt((0^2 + (-7)^2))

    D2 = sqrt(49)

    D2 = 7

    Hence, total length = D1 + D2 = 5 + 7 = 12 units

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