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3 years ago

(x+4)(2x+3)(-x-9)=f(x) find the zeros

Mathematics

1 answer:

Sonbull [250]3 years ago

6 0

9514 1404 393

Answer:

x = {-9, -4, -3/2}

Step-by-step explanation:

The zeros are the values of x that make the factors zero. (If a factor is zero, the product will be zero.)

x+4 = 0

x = -4 . . . . subtract 4

2x+3 = 0

2x = -3 . . . . subtract 3

x = -3/2 . . . divide by 2

-x-9 = 0

-9 = x . . . . add x

The zeros are ...

x = {-9, -4, -3/2}

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netineya [11]

Answer:

Step-by-step explanation:

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so ur box plot is gonna look like this :

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3 years ago

What is -12 = -3y? Can you pls help me

Rashid [163]

Answer:

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Step-by-step explanation:

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Divide both sides of the equation by

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3 years ago

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777dan777 [17]

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3 years ago

What are the slope and the y-intercept of the linear function that is represented by the table? x y –1 Negative three-halves Neg

MAVERICK [17]

Answer:

The slope of the line is 3 and the y-intercept is (3/2) three-halves.

Step-by-step explanation:

The data provided is:

X Y

-1.0 -1.5

-0.5 0.0

0.0 1.5

0.5 3.0

The slope of the linear function is denoted by, b and the intercept is denoted by, a.

The formula to compute the slope and intercept are:

$a &= \frac{\sum{Y} \cdot \sum{X^2} - \sum{X} \cdot \sum{XY} }{n \cdot \sum{X^2} - \left(\sum{X}\right)^2} \\\\b &= \frac{ n \cdot \sum{XY} - \sum{X} \cdot \sum{Y}}{n \cdot \sum{X^2} - \left(\sum{X}\right)^2}$

Compute the values required in Excel.

Compute the slope and intercept as follows:

$a &= \frac{\sum{Y} \cdot \sum{X^2} - \sum{X} \cdot \sum{XY} }{n \cdot \sum{X^2} - \left(\sum{X}\right)^2} = \frac{ 3 \cdot 1.5 - (-1) \cdot 3}{ 4 \cdot 1.5 - (-1)^2} \approx \frac{3}{2} \\ \\b &= \frac{ n \cdot \sum{XY} - \sum{X} \cdot \sum{Y}}{n \cdot \sum{X^2} - \left(\sum{X}\right)^2} = \frac{ 4 \cdot 3 - (-1) \cdot 3 }{ 4 \cdot 1.5 - \left( -1 \right)^2} \approx 3\end{aligned}$

Thus, the slope of the line is 3 and the y-intercept is (3/2) three-halves.

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3 years ago

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