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Masteriza [31]
3 years ago
5

Eight increased by the product of a number and 5 is at most -28 (translate the sentence into an inequality)

Mathematics
1 answer:
gulaghasi [49]3 years ago
8 0

Answer:

The inequality would be 8+5x\leq-28

Step-by-step explanation:

The sentence says "8 increased", this is telling you that the inequality includes the number 8 that is being added to something else.

"Product of a number and 5", this tells you that there is a variable that is being multiplied by 5.

"at most -28" means that it is less than or equal to -28.

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Answer:

1) The probability that the mean mpg for a random sample of 25 light vehicles is 0.042341.

2) between 20 and 25 --> 21-25/2.9 = -1.38

Step-by-step explanation:

Problem #1:

  • Using the z-score formula, z = (x-μ)/σ/n, where x is the raw score = 20 mpg,μ is the population mean = 21 mpg , σ is the population standard deviation = 2.9, n = random number of samples.
<h3><u>X < 20</u></h3>
  • = z = 20 - 21/2.9/√25
  • = z = -1/2.9/5
  • = z = -1.72414
<h2><u><em>Now</em></u></h2>

<em>P-value from Z-Table:</em>

<h3><u>P(x<20) = 0.042341</u></h3>

Problem #2:

<h3>21-25/2.9 = -1.38</h3>
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Step-by-step explanation:

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