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lys-0071 [83]
3 years ago
15

3. Use the following table to answer questions (a – c).

Mathematics
1 answer:
sineoko [7]3 years ago
7 0

Answer:

See below

Step-by-step explanation:

B) The correlation coefficient is r=0.75, which can be determined by plugging the data into a TI-84 calculator.

C) A correlation coefficient of r=0.75 indicates that the correlation between the independent and dependent variable (x and y in this case) is moderately strong with a positive correlation. The closer r is to 1, the stronger the positive correlation. The closer r is to -1, the stronger the negative correlation. If r is closer to 0, then there's no correlation.

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Which is equivalent to (9y2 – 4x)(9y2 + 4x), and what type of special product is it?
QveST [7]
This is an example of the difference of squares.

a^2 - b^2 = (a-b)(a+b)

So to find the product of <span>(9y</span>²<span> – 4x)(9y</span>²<span> + 4x), we use the formula for the difference of squares.

</span>(9y^2 - 4x)(9y^2 + 4x)\\\\=(9y^2)^2 -(4x)^2\\\\=\boxed{\bf{81y^4 - 16x^2}}<span>
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4 years ago
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Answer:

There were a total of 40 girls there

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3 years ago
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cupoosta [38]

Answer:

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Step-by-step explanation:

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3 years ago
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9966 [12]

Answer:

3000 cm^3.

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Another One I need help withhhh sorrry
Effectus [21]

Answer:

y = 2x+3

Step-by-step explanation:

Sorry I'm probably too late since Quizziz doesn't wait unless you have the freeze timer thing.

y = mx+b

b is the y intercept. The y intercept (when x=0) is given in the table.

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My coordinates: (1,5)

5 = m + 3

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Note: never plug in the y intercept when looking for m.

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m = (7-5)/(2-1)

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6 0
3 years ago
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