Answer:
R is reflexive and transitive but not symmetric.
Step-by-step explanation:
R = {(a, b); a ≤ b}
Clearly (a, a) ∈ R as a = a.
R is reflexive.
Now,
(2, 4) ∈ R (as 2 < 4)
But, (4, 2) ∉ R as 4 is greater than 2.
R is not symmetric.
Now, let (a, b), (b, c) ∈ R.
Then,
a ≤ b and b ≤ c
→ a ≤ c
→ (a, c) ∈ R
R is transitive.
Thus, R is reflexive and transitive but not symmetric.
Answer:
The outlier is at (2, 1.5)
Step-by-step explanation:
The scatter plot shows that he duration of the second eruptions lasts 1.5 minutes, whilst the duration of all other eruptions lasts about 4 minutes. So the second eruption is an outlier.
plz don't share exam questions here!
Chang is incorrect because his factoring results in -21 instead of positive 21.
Benjamin is incorrect because his factoring results in positive 9x instead of -9x.
Habib's answer is incorrect because 4 + 12x is not equivalent to the expression above.
A correct factor would be: 4-3(3x-7)
Answer:
RRRAWRRRRRRRR
Step-by-step explanation:
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