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Blababa [14]
3 years ago
14

¿A cuantos habitantes equivale él numero .38 en la población de Brasil?

Mathematics
1 answer:
LekaFEV [45]3 years ago
7 0
Podria ser cierto......
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Which table describes the behavior of the graph of f(x) = 2x3 – 26x – 24?
In-s [12.5K]

Answer:

For x∈ {-∞,-3} y<0, below x-axis

x∈ {-3,-1} y>0, above x-axis

x∈ {-1,4} y<0, below x-axis

x∈ {4,∞} y>0, above x-axis

Step-by-step explanation:

f(x)=2x^{3}-26x-24

2x^{3}-26x-24=0

2x^{3}-26x-24=0\\2x^{3}-2x-24x-24=0\\2x(x^{2} -1)-24(x+1)=0\\2x(x+1)(x-1)-24(x+1)=0\\(x+1)(2x^{2} -2x-24)=0\\=> x+1=0 => x_{1}=-1\\

=> 2x^{2} -2x-24=0\\=>2(x^{2} -x-12)=0\\=> x^{2} -x-12=0\\=> x^{2} -4x+3x-12=0\\=> x(x-4)+3(x-4)=0\\=> (x-4)(x+3)=0\\

=> x-4=0\\=> x_{2}=4\\=> x+3=0\\=>x_{3}=-3\\

For x∈ {-∞,-3} y<0, below x-axis

x∈ {-3,-1} y>0, above x-axis

x∈ {-1,4} y<0, below x-axis

x∈ {4,∞} y>0, above x-axis



7 0
3 years ago
Read 2 more answers
Answer those two questions please
yuradex [85]

Answer:

1. 3212 = 3.212 X 10 of 3

2. because it easier to write and read

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FIND PRODUCT USING THIS AREA MODEL 300+70+8 AND WRITE THE EQUATION
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Answer:

378

Step-by-step explanation:

300

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+-------

378

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Ly
serious [3.7K]

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Step-by-step explanation:

765

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3 minus the product of a number and k
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Answer:

let the number be n :

3 \times n = k \\ { \underline{ \:  \: 3n = k \:  \: }}

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2 years ago
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