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3 years ago

Melissa rolls 2 fair dice and adds the results from each.

Mathematics

1 answer:

nataly862011 [7]3 years ago

5 0

A fair dice: 6
2 fair dice: 12
Therefore the probability of getting a total more than 12 is 0
Tell me if I’m wrong

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If A and B are independent events, P(A) = 0.25, and P(B) = 0.3, what is P(AB)?

Marrrta [24]

Answer:

$P(A) = 0.25, P(B= 0.3$

And if we want to find $P(A \cap B)$ we can use this formula from the definition of independent events :

$P(A \cap B) =P(A) *P(B) = 0.25*0.3= 0.075$

And the best option would be:

$P(A \cap B) =0.075$

Step-by-step explanation:

For this case we have the following events A and B and we also have the probabilities for each one given:

$P(A) = 0.25, P(B= 0.3$

And if we want to find $P(A \cap B)$ we can use this formula from the definition of independent events :

$P(A \cap B) =P(A) *P(B) = 0.25*0.3= 0.075$

And the best option would be:

$P(A \cap B) =0.075$

3 0

3 years ago

How do you do solve this problem

Damm [24]

Answer:

Step-by-step explanation:

1cm = 10mm

Therefore 8cm = 8 · 10mm = 80mm

The scale of the model

$\dfrac{model}{real}\to\dfrac{80}{0.43}=\dfrac{80\cdot100}{0.43\cdot100}=\dfrac{8000}{43}\approx186$

8 0

3 years ago

Simplify 12 + 3(2x - 3) + 4.

raketka [301]

Answer:

7 + 6x

Step-by-step explanation:

12 + 3(2x - 3) + 4 =

12 + 6x - 9 + 4 =

7 + 6x

6 0

3 years ago

Kellie is playing with a toy building block that has the shape of a rectangular prism.

Lena [83]

I think the volume is 200

3 0

3 years ago

How do i solve by using substitution

elena55 [62]

Answer:

a = 0, b = 3

Step-by-step explanation:

3a + b = 3

b = - 3a +3

2a - 5b = - 15

2a - 5(-3a + 3) = - 15

2a + 15a - 15 = - 15

17a = 0

a = 0

b = -3a +3 = - 3 *0 +3 = 3

3 0

3 years ago