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Soloha48 [4]
2 years ago
5

What is the quadratic regression equation that fits these data?

Mathematics
1 answer:
ratelena [41]2 years ago
4 0

Answer:

y = 2.09x2 + 0.33x + 3.06

Step-by-step explanation:

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A student received an 82% on an exam. If there were 50 questions on the exam, which ratio would show the number of questions ans
solmaris [256]
Hello!

To solve this we have to find what 82% of 50 is

So we do 50 * 0.82 where 0.82 is 82% as a decimal.

This gives us 41

So the answer is D

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The water level of a river is 170 feet. The river recedes 4 feet each year. Ingrid claims that the equation that represents this
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Sample Answer: No, Ingrid is incorrect. The initial value in the scenario is 170 feet, which represents the y − intercept. Receding 4 feet in the scenario represents the rate of change, which is the slope. In slope-intercept form, y = mx + b, where m represents slope and b represents the y−intercept, so the correct equation is y = −4x + 170.


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2 years ago
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In the diagram, AB and EF are horizontal lines and CB is a vertical line segment. If FB : FC = 4 : 3, what are the coordinates o
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For the answer to the question above, are your diagram shows that the horizontal lines and is a vertical line segment where as FB: 3 , If C is equaled to 3, so the coordinate of the point D would be (-6,-4).I hope my answer helped you.
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2 years ago
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Which formula can be used to describe the sequence?
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Answer:

B

Step-by-step explanation:

I think your answer will be B! Good luck :)

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The function p(x) = -2(x-9)2 + 100 used to determine the profit on T-shirts sold for x dollars. What would the profit from sales
Elden [556K]

Answer:

$28.

Step-by-step explanation:

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If the prices (x) = 15 dollars we work out the profit by substituting x = 15 in the above formula:

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