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Mashutka [201]
3 years ago
10

Which expression is equivelent to (-2)(a+6) -2a+6 2a+12 -2a-12 -2a+12

Mathematics
1 answer:
pogonyaev3 years ago
7 0

Answer:

-2a -12

Step-by-step explanation:

a minus * a plus is a negative therefore -12

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Which number line represents the solution set for the inequality 2x – 6 ≥ 6(x – 2) + 8?

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Last Friday Cicely had $22.50. Over the weekend she received some money for
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Answer:

It should be $32 - $22.50.

Step-by-step explanation:

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Hope this helps:)!

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3 years ago
Cargo ships arrive at a loading dock at a rate of 2 per day. The dock has the capability of handling 3 arrivals per day. How man
Vsevolod [243]

Answer:

4 days

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We need to use the probability functions of each of the intervals to know the Probability number and then use it in the expected value.

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P(x>3) = 1 - [\frac{e^{-2}2^0}{01}+\frac{e^{-2}2^1}{11}+\frac{e^{-2}2^2}{21}+\frac{e^{-3}2^3}{31}]

P(x>3) = 1- [0.1353(1+2+2+1.33)]

P(x>3) = 1-0.856

P(x>3) = 0.1431

Als n=30, expected number is

E(x) =30*P(x>3)

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E(x) = 4.293

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20,400 * 10 = 204,000

So the citrus grower shipped 204 thousand grapefruits.
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3 years ago
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