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Zanzabum
3 years ago
10

The correlation of SAT scores and grade point averages (GPAs) for a random sample of high school students is represented by the

scatterplot below. 2400 2200 2000 1800 SAT Score 1600 1400 1200 1000 800 600 400 200 o 0 10 20 30 40 50 60 70 80 90 100 High School GPA The approximate line of best fit is given by the equation y = 40x - 1800. Based on this trend, which of the following best predicts the SAT score for a high school student with a GPA of 95? 2000 2200 Ο Ο Ο Ο 1980 1895​

Mathematics
1 answer:
fredd [130]3 years ago
6 0

Answer:

Step-by-step explanation:

A

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Answer:

For linear equations we use:

p=mx+b   ------  (1)

Now we have the following coordinates:

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First we need slope (m)

m= (400-280)/(5000-1000)

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Now we will plug the value of m in the first equation

280=0.03(1000)+b

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Now plug into p=mx+b using only m=0.03 and b=250

p=0.03x+250

When the unit price is $440, we can plug in 440 in for p;

440=0.03x+250

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The lowest price at which  a refrigerator will be marketed, we can find this by plugging x = 0 in p=mx+b.

p=0.03(0)+250

=> p = $250

6 0
3 years ago
To get a student learner's permit to drive in New Jersey, an individual must be at least 16 years old. Let, a, represent the age
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Answer:

a\geq 16

Step-by-step explanation:

Let a represents the age at which a person gets a student learner's permit to drive in New Jersey.

Also, an individual must be at least 16 years old to get a student learner's permit to drive in New Jersey.

So, inequality is a\geq 16

(Inequality explains a relationship of greater than or greater than or equal to or less than, or less than or equal to between two mathematical expressions)

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Answer:

2, 9.8, \sqrt{99}

Step-by-step explanation:

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2

Step-by-step explanation:

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