Quadrilateral QRST is a rectangle. RT = 5x + 1 and QS = 6x – 3. Find QS. A. 8 B. 21 C. 42 D. 4

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TheGeekNess · Answer 1 · 2020-05-09T15:03:14+0000

Answer:

21.

Explanation:

RT and QS are diagonals of the rectangle and are equal in length.

5x + 1 = 6x - 3

-x = -4

x = 4

So QS = 6(4) - 3

= 21.