So I looked it up and it says something about 8 hours
x = -1 makes the lengths of segments PQ and PR equal zero.
That is not possible, so the solution x = -1 is discarded.
x = 8
PS = 3x + 3 + 21
PS = 3x + 24
PS = 3(8) + 24
PS = 24 + 24
PS = 48
He could have wrote -2.5 or -3.
Answer:
idek
Step-by-step explanation:
idek
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