3 years ago

Is x^(-2)+5 a polynomial expression? Why or why not?

Mathematics

1 answer:

Lynna [10]3 years ago

3 0

Answer:

it is not because a polynomial cannot have a negative power

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a coffee machine dispenses 8 ounce cups automatically. The amount of coffee may vary by 3%. What are the least and greatest numb

Rudiy27

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the minimum amount would be 7.76 ounces

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3 years ago

What are the solutions to the equation 3(x – 4)(x + 5) = 0?

vesna_86 [32]

First you distribute the 3
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What is 4/5 decomposed

NeTakaya

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3 years ago

(UFRGS) Se 10x = 20y , atribuindo 0,3 para log2, então o valor de é

sveticcg [70]

Answer:

$\frac{x}{y}=1.3$

Step-by-step explanation:

<u>Informação recuperada:</u>

(UFRGS) Se 10x = 20y , atribuindo 0,3 para log 2 , então o valor de x/y é

1) Primeiro, passando o 10 para o 2º membro como base do logaritmo:

$10x=20y \Rightarrow x=log_{10}20y$

2) Aplicando a propriedade do produto de logaritmo:

$log(AB)= logA+logB$

$x=log_{10}20y \Rightarrow x=log(2+10)y\Rightarrow x=(0.3+1)y \Rightarrow x=1.3y$

3) Como quero o quociente divido ambos os lados por y

$\frac{x}{y}=\frac{1.3y}{y}\Rightarrow \frac{x}{y}=1.3$

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3 years ago