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Aleksandr-060686 [28]
3 years ago
11

Evaluate the expression l11-2l

Mathematics
2 answers:
nignag [31]3 years ago
8 0

absolute value means whats inside is always positive

|11-2| = |9|  =9

Ulleksa [173]3 years ago
5 0

9

l l <-- these brackets mean 'absolute' so it will always be positive, even if the stuff inside is negative.

11-2 is 9

l11-2l is 9 as well, even though it is positive.


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Answer:

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Step-by-step explanation:

<u><em>Step(i):-</em></u>

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P(x₁≤ x≤x₂) = P(Z₁≤ Z≤ Z₂)

                  = P(-0.6 ≤Z≤2.1)

                  = P(Z≤2.1) - P(Z≤-0.6)

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The probability that the weight of a randomly selected steer is between 920 and 1730 lbs

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