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Helga [31]
3 years ago
14

Which expression is equivalent to (3x-6)(4x+1)

Mathematics
1 answer:
vodka [1.7K]3 years ago
8 0

Answer:

12x^2 -21x -6

Step-by-step explanation:

(3x-6)(4x+1)

FOIL

first 3x*4x= 12x^2

outer 3x*1 = 3x

inner -6*4x = -24x

last  -6*1 = -6

Add them together

12x^2 +3x -24x -6

Combine like terms

12x^2 -21x -6

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jolli1 [7]
I think this is right

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+2 +2
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If you know how to do algebra this should make sense
6 0
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Six friends arrive at a party their arrival increases the number of people at the party by 20% in total how many people are now
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Answer:

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Where:

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The difference between the observed value of the dependnet variable and the value predicted using the estimated regression equation is known as residual, and the residual is given by this formula:

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So the best option for this case is:

d. residual

Step-by-step explanation:

For this case we define the dependent variable as Y and the independent variable X. We assume that we have n observations and that means the following pairs:

(x_1, y_1) ,....,(x_n,y_n)

For this case we assume that we want to find a linear regression model given by:

\hat y = \hat m x +\hat b

Where:

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So the best option for this case is:

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7 0
3 years ago
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The unit rate for the problem is 16
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blondinia [14]

Answer:

I know the answer it is 17

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