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Rashid [163]
3 years ago
8

If you want 20 points, please help me with this . I really need help.

Mathematics
1 answer:
exis [7]3 years ago
5 0

For #10

x=2     w(x)= 5

x=0     w(x)=-9

x=1     w(x)=-1

x=4    w(x)=7

To get these answers, you must use the p(x) table. When x=2, p(x)=6. So you would substitute p(x) for 6 and solve. That would be what you would do for the rest of teh problems.

For #12, the answer would be 5x^2+15x+5

Just mutiply the areas of the out side and inside and subtract them

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1. 40 lb is what percent of 75 lb?
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Determine whether the following results appear to have statistical​ significance, and also determine whether the results have pr
MA_775_DIABLO [31]

Considering the p-value of the test, it is found that the result has neither statistical nor practical significance, as it does not give sufficient evidence that the IQ is increases by 10 to 20 points.

<h3>What is the relation between the p-value and the conclusion of the test hypothesis?</h3>

Depends on if the p-value is less or more than the significance level:

  • If it is more, the null hypothesis is not rejected.
  • If it is less, it is rejected.

In this problem, the p-value is of 0.28, which is greater than 0.05, hence there is not enough evidence that the IQ increase is as stated, meaning that the result has neither statistical nor practical significance.

More can be learned about p-values at brainly.com/question/16313918

#SPJ1

6 0
2 years ago
A person is running at an initial velocity of 3.7 m/s. If the person is accelerating at 2 m/s2, what is their final velocity aft
igomit [66]

<u>Statement</u><u>:</u>

A person is running at an initial velocity of 3.7 m/s. If the person is accelerating at 2 m/s².

<u>To </u><u>find </u><u>out:</u>

The person's final velocity after 3 s.

<u>Solution</u><u>:</u>

  • Initial velocity (u) = 3.7 m/s
  • Acceleration (a) = 2 m/s²
  • Time taken (t) = 3 s
  • We know, the equation of motion,
  • v = u + at
  • Putting the values in the above equation, we get,
  • v = 3.7 m/s + 2 m/s² × 3 s
  • or, v = 3.7 m/s + 6 m/s
  • or, v = 9.7 m/s

<u>Answer</u><u>:</u>

The final velocity is 9.7 m/s in the direction of the motion.

Hope you could understand.

If you have any query, feel free to ask.

7 0
2 years ago
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