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3 years ago

Factor out -2x^3+6x+4

1 answer:

5 0

Hi,
$-2x^3+6x+4=-2(x^3-3x-2)\\
=-2(x^3+x^2-x^2-x-2x-2)\\
=-2(x^2(x+1)-x(x+1)-2(x+1))\\
=-2(x+1)(x^2-x-2)\\
=-2(x+1)(x^2+x-2x-2)\\
=-2(x+1)(x(x+1)-2(x+1))\\

=-2(x-2)(x-1)^2 \\

$

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3 years ago

The best fit line is given by the equation y = 0.404x - 5.18, where y represents the height of the plant above ground level, and

IRISSAK [1]

Step-by-step explanation:

The line of best fit given:

y = 0.404x - 5.18

It is given in the slope-intercept form:

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The slope is this situation is m = 0.404 cm and it represents the average growth rate of the plant in one day.

It seems reasonable but without means of control it is difficult to trace the growth while still under the ground, during the first 13-14 days.

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2 years ago

17.25 round up to ones

Irina18 [472]

17.24

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7 0

3 years ago

Read 2 more answers

Albert receives $0.30 per pound for 1 to 49 pounds of glass bottles he recycles. He receives $0.40

Marina86 [1]

Answer:

Yes

Step-by-step explanation:

The amount of money Albert receives is described by the expression

$y = \begin{cases}0.30x & \quad \text{if } 0 \leq x \leq 49 \\0.40x & \quad \text{if } x > 50\\\end{cases}$

The graph is shown below.

To determine if the relation is a function, we can use the vertical line test:

If a vertical line crosses the graph more than once in any location, the relation is not a function.

We see that at no place will a vertical line intersect the graph more than once.

The relation is a function.

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4 years ago

Help please ASAP!!!!! you can zoom in to see better

meriva

Answer:

true, false, and false

Step-by-step explanation:

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3 years ago