Answer: root18
Step-by-step explanation:
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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2(5k+1)
2x5x2+1 =21
K=2 | 21
2x5x3+1 =31
K=3 | 31
Answer:
the second option
Step-by-step explanation:

So, Option B is correct.
Step-by-step explanation:
We need to solve the inequality: 
Solving:

The absolute rule says that if |u|<a and a>0, then -a<u<a
So, applying absolute rule:

We can write it as:

Combining the intervals:

So, Option B is correct.
Keywords: Solving inequalities
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