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FromTheMoon [43]
3 years ago
9

Hurry!! Worth 10 points

Mathematics
1 answer:
Darina [25.2K]3 years ago
8 0

Answer:

its D

Step-by-step explanation:

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Determine whether the polynomial is a difference of squares and if it is, factor it.
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Answer:

(y - 4)(y + 4)

Step-by-step explanation:

y² - 16 ← is a difference of squares

Since y² and 16 are both squares separated by a difference , that is minus

A difference of squares factors as

y² - 16

= y² - 4²

= (y - 4)(y + 4)

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3 years ago
What is the y-intercept, b, of the additive relationship represented by this table?
mina [271]

Answer:

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Step-by-step explanation:

Use the table to find the slope and y-intercept

<u>Find the slope:</u>

  • m = (6 - 4)/(3 - 1) = 2/2 = 1

<u>Find b using the pair (1, 4):</u>

  • 4 = 1*1 + b
  • b = 4 - 1
  • b = 3

<u>The line is:</u>

  • y = x + 3

The y-intercept is 3

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3 years ago
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Find the point-slope form. Then use that to find the slope-intercept form
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4 0
3 years ago
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Ymorist [56]

Answer:

...

Step-by-step explanation:

5 0
2 years ago
Suppose that in a certain chemical process the reaction time y (hr) is related to the temperature (°F) in the chamber in which t
Svetllana [295]

Answer:

The expected change in reaction time for a 1°F increase in temperature is 4.39 hours.

The expected change in reaction time for a 8°F increase in temperature is 4.32 hours.

Step-by-step explanation:

The simple linear regression line is used to determine the changes in the dependent variables when the independent variable is changed.

The general form of the simple linear regression line is:

y=\alpha +\beta x

The simple linear regression model for the reaction time of a certain chemical process based on the temperature (°F) in the chamber in which the reaction takes place is:

y=4.40-0.01\ x

Here,

<em>y</em> = reaction time (in hours)

<em>x</em> = temperature (°F)

Compute the expected change in reaction time for a 1°F increase in temperature as follows:

y=4.40-0.01\ (1^{\text{o}})

  =4.40-0.01\\=4.39\ \text{hours}

The expected change in reaction time for a 1°F increase in temperature is 4.39 hours.

Compute the expected change in reaction time for a 8°F increase in temperature as follows:

y=4.40-0.01\ (8^{\text{o}})

  =4.40-0.08\\=4.32\ \text{hours}

The expected change in reaction time for a 8°F increase in temperature is 4.32 hours.

7 0
3 years ago
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