2 years ago

What is the quadratic regression equation that fits these data?

Mathematics

1 answer:

adelina 88 [10]2 years ago

5 0

Answer: y= 2.38x^2 + 0.90x + 9.90

Step-by-step explanation:

A p e x

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lions [1.4K]

Answer:

b=9,a=12

Step-by-step explanation:

I solved by substitution:

b = 3/4a ---> plug this into the other equation

a + b = 21 is now a + 3/4a = 21

Reduce: 7/4a = 21

a = 12

Now solve for b:

b=3/4a is now b=3/4(12)

b=9

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3 years ago

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Christian randomly selects students from his grade to rate a math test as easy, moderate, or difficult. Of the students he surve

IRINA_888 [86]

Answer:

Step-by-step explanation:

Total students he surveyed: 27

Amount that found it something OTHER than easy: 14 (11 moderate + 3 difficult)

This means that $\frac{14}{27}$ found it something other than easy

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2 years ago

A players kinetic energy will be most affected by his

miskamm [114]

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3 years ago

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almond37 [142]

26.3 (5 out of 19) and 58.5 (72 out of 123)
May be wrong, but pretty sure it’s right

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3 years ago

4x + y = 3

cestrela7 [59]

Answer:

-1

Step-by-step explanation:

You have to use simultaneous linear equation as there are 2 equations given

use the subtitution method as what I've shown above

Hope you can understand well

Stay safe!

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3 years ago

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