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satela [25.4K]
3 years ago
15

A partir dos valores a seguir, determine a lei da função.

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
3 0

Answer:

Ela segue esse modelo

f(x) = ax + b

Então, é só substituir os valores de x e de y na Lei de Formação

Ex: quando x=0, y=-1

y= ax+b

-1=a.0+b

b= -1

È onde a reta toca o eixo y, porque x=0

Agora, vamos usar outro par ordenado.

Quando x=2, y=3

3=a.2+(-1)

3=2a-1

3+1=2a

4=2a

a=4/2

a=2

A lei de formação é essa

a= 2; b=-1

f(x)= ax+b

f(x)=2x-1

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Answer:

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Step-by-step explanation:

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4:x = 24:12

24:12 reduced is 2:1

Therefore we can see x must be half of 4.

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A factory made 845 pairs of shoes in January. These shoes were sent to three shoe stores and one outlet mall. The number of pair
Semenov [28]
Answer=65 pairs of shoes

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4 years ago
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Help me please, kinda lost
Dmitry_Shevchenko [17]

Answer:

400cm^2

Step-by-step explanation:

For this question, you need to find the surface areas of both objects, then add them together.

For the cube:

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56cm for the back

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42cm for the other side

48cm for the top

48cm for the bottom

SA for the cube: 292cm^2

For the triangle, things are a little different. We do the same process that we did to find the SA of the cube, but we do not have to find the SA of the top side (because there isn't a top side) and we have to divide the total SA by 2 because it's a triangle.

For the triangle:

42cm for the front

42cm for the back

54cm for the slanted side

42cm for the other side

36cm for the bottom

SA for the triangle: (216/2)^2=108cm^2

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the SA of the composite figure is 400cm^2

8 0
3 years ago
How would you answer this question? thanks
Bogdan [553]

Answer:

What is the question so we can answer

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