3 years ago

Great Free Practice Problems

Mathematics

2 answers:

Firdavs [7]3 years ago

3 0

Answer:

1) 38

2) 56

3) 86

4) 37

5) 6 i think

6) 93

Step-by-step explanation: sorry if any of these are wrong

Alex73 [517]3 years ago

3 0

Answer:

The answer is 38. Sorry if it's wrong.

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En un curso, el 40 % de los alumnos reprobó un examen. Si el curso tiene 45 alumnos. ¿Cuántos alumnos aprobaron

iVinArrow [24]

Answer:

Cantidad de aprobados= 25

Step-by-step explanation:

Dada la siguiente información:

Reproado= 45%

Aprobado= 55%

Cantidad de alumnos= 45 alumnos

Para calcular la cantidad de aprobados, debemos utiliar la siguiente formula:

Cantidad de aprobados= cantidad de alumnos*porcentaje aprobados

Cantidad de aprobados= 45*0.55

Cantidad de aprobados= 25

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Sveta_85 [38]

Answer:

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Step-by-step explanation:

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kherson [118]

Answer:

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Step-by-step explanation:

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3 years ago

Perform the indicated operation g(x)=x^3+5x and f(x)=2x-2 Find (g o f)(x)

Blababa [14]

Answer:

g(f(x)) = 8x^3-24x^2+34x-18

Step-by-step explanation:

The composition is ...

$(g\circ f)(x)=g(f(x))=g(2x-2)\\\\=(2x-2)^3+5(2x-2)\\\\=(2x)^3 +3(-2)(2x)^2+3(-2)^2(2x)+(-2)^3+10x-10\\\\=8x^3-24x^2 +24x-8+10x-10\\\\\boxed{(g\circ f)(x)=8x^3-24x^2+34x-18}$

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astra-53 [7]

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3 years ago

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