Answer:
f(5) = -1
Step-by-step explanation:
f(x) = x-7/2x-8
f(5) = 5-7 / (2*5 - 8)
= -2 / (10-8)
= -2/2
= -1
Answer: root18
A (2,2) x1=2 y1=2
B (5,5) x2=5 y2=5
D(AB) = root [(x2-x1)^2 + (y2-y1)^2]
= root [(5-2)^2 + (5-2)^2]
= root [3^2 + 3^2]
= root (9+9)
D(AB)=root18
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