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Vesnalui [34]
2 years ago
10

3(x-2) < 2(x+9) 1. x<12 2.x>12 3. x<24 4.x>24

Mathematics
1 answer:
Nataly_w [17]2 years ago
7 0

Answer:

3rd option x<24

Step-by-step explanation:

3×(x-2)<2×(x+9)

3 times everything in the bracket and 2 times everything in the bracket.

3x(-2x)-6<2x(-2x)+18 take away 2x from both sides

( Opposite operators EG, Add becomes subtract)

x-6(+6)<18(+6) add 6 on both sides

x<24

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Step-by-step explanation:

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Determine the number of zeros of the polynomial function <br> F(x) = x^4 - x^7
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Answer:

7

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2 years ago
Select each expression that is equivalent to 3n+6 select all that apply. Explan.
arsen [322]
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5 0
3 years ago
The probability that Ariana is on time for a given class is 69 percent. If there are 39 classes during the semester, what is the
salantis [7]

Answer:

The best estimate of the number of times out of 39 that Ariana is on time to class is 27.

Step-by-step explanation:

For each class, there are only two possible outcomes. Either Ariana is on time, or she is not. The probability of Ariana being on time for a class is independent of other classes. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

The expected value of the binomial distribution is:

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The probability that Ariana is on time for a given class is 69 percent.

This means that p = 0.69

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E(X) = np = 39*0.69 = 26.91

Rounding

The best estimate of the number of times out of 39 that Ariana is on time to class is 27.

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Answer:

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