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The cordinates of the endpoints of RT are R(-6,-5) and T(4,0), and point S is on RT. The coordinates of S are (-2,-3). Which of the following represent the ratio RS:ST?

User Ruy Rocha
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2 Answers

6 votes

Answer:

Which of the following coordinates is the solution to this system? The coordinate grid below represents a system of linear equations.A.(0, 3)B.(0, -3)C.(3, -2)D.(-3, 2

Explanation:

The answer is A Because the plane is 3/0 wide and the length is way longer then that so its 3,0

User Gajus
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5 votes
The ratio RS:ST is 2:3.

We will use the distance formula:

d=√((y_2-y_1)^2+(x_2-x_1)^2)

The distance from R to S is:

d=√((-5--3)^2+(-6--2)^2) \\ \\=√((-5+3)^2+(-6+2)^2) \\ \\=√((-2)^2+(-4)^2) \\ \\=√(4+16)=√(20)=√(4*5)=2√(5)

The distance from S to T is:

d=√((-3-0)^2+(-2-4)^2) \\ \\=√((-3)^2+(-6)^2)=√(9+36)=√(45) \\ \\=√(9*5)=3√(5)

The ratio of RS to ST is then

(2√(5))/(3√(5))

Since √5 cancels out on the top and bottom, we are left with
2/3 = 2:3
User RocketMan
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