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Romashka-Z-Leto [24]

3 years ago

7

A bag contains eight blue marbles six red marbles and four green marbles what is the probability of selecting a red marble repla

cing it in the bag then selecting a green marble

1 answer:

Paha777 [63]3 years ago

7 0

Answer: $\frac{2}{27}$

<u>Step-by-step explanation:</u>

blue = 8 , red = 6 , green = 4 , total = 18

red and green

$\frac{6}{18}$ x $\frac{4}{18}$

= $\frac{1}{3}$ x $\frac{2}{9}$

= $\frac{2}{27}$

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jeka94

Answer:

Options (2), (4) and (5)

Step-by-step explanation:

Option (1).

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Option (2).

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Option (3).

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Masteriza [31]

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2 years ago

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Sever21 [200]

Answer:

$m= \frac{r_2 -r_1}{t_2 -t_1}= \frac{2000000-1000000}{14-4}=100000$

And then we can use for example the first point $(t_1, r_1) = (4, 1000000)$ to find the intercept:

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So then the linear model for this case should be:

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Step-by-step explanation:

For this case we want to find a linear model given by:

$r =mt+b$

Where r = represent the number of readers , t= years after 2000

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For this case we can define the following points from the data given:

$(t_1, r_1) = (4, 1000000)$ 4 years after 2000

$(t_2, r_2) = (14, 2000000)$ 14 years after 2000

We can find the slope with the following formula:

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$1000000= 100000*4 + b$

$b=600000$

So then the linear model for this case should be:

$r = 100000 t + 600000$

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