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guajiro [1.7K]
3 years ago
11

Prove: If a^2-a is even then a is even.

Mathematics
1 answer:
Alla [95]3 years ago
6 0

This is not always true. Consider a=3. Then 3^2-3=9-3=6 is even, but a is odd.

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The Robotics Manufacturing Company operates an equipment repair business where emergency jobs arrive randomly at the rate of thr
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Answer:

The correct answer is:

  • \lambda=0.375 \ jobs \ per \ hour
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Step-by-step explanation:

The given values are:

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Standard deviation = 1.5 hours

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= $35

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(a)

⇒ Arrival rate = Jobs per hours

then,

                       = \frac{8 \ hours}{3 \ jobs}

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The jobs per hour will be:

⇒  \lambda=\frac{1}{2.666}

       =0.375

(b)

⇒ Service rate = jobs per hour

then,

                      μ = \frac{1 \ repair \ job}{2 \ hours}

                         = 0.5 \ jobs

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4 0
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What is the measure of angle A, in degrees?​
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Answer:


Step-by-step explanation:


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