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Llana [10]
3 years ago
14

Suppose a bag of marbles has 4 green, 2 red, 5 yellow, 1 brown, and 7 blue marbles. What is the probability of picking a green m

arble, replacing it, and then picking a brown marble? The probability of a student having a skateboard is 0.49 and the probability of having rollerblades is .57. What is the probability that a student has both a skateboard and roller blades? If 50% of your friends like coffee and 70% like hot cocoa, what is the probability that one of your friends likes both coffee and hot cocoa?
Mathematics
1 answer:
Helga [31]3 years ago
8 0

Answer:

1. There are a total of 19 marbles in the bag. The probability of picking a green marble out of them is 4/19 since there are only 4 green ones. The probability of picking a brown marble after replacing what has been initially picked is 1/19. The final probability is the product of the two probabilities and that is 4/361.

2. ?

3. 60%

Step-by-step explanation:

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sladkih [1.3K]

Answer:

f(x)=(x-4)^{2}

Step-by-step explanation:

we have that

The axis of symmetry shown in the graph is x=4

we know that

The axis of symmetry of a vertical parabola is equal to the x-coordinate of the vertex

so

<em>Verify each case</em>

<em>case a)</em> we have

f(x)=(x+4)^{2}

The vertex is the point (-4,0)

therefore

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<em>case b)</em> we have

f(x)=x^{2}+4

The vertex is the point (0,4)

The axis of symmetry is x=0

therefore

Cannot be the function

<em>case c)</em> we have

f(x)=(x-4)^{2}

The vertex is the point (4,0)

The axis of symmetry is x=4

therefore

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<em>case d)</em> we have

f(x)=x^{2}-4

The vertex is the point (0,-4)

The axis of symmetry is x=0

therefore

Cannot be the function

8 0
3 years ago
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dalvyx [7]

Answer:

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8 0
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Farmer Gray planted 300 seeds.

To find this, you simply multiply the number of flower pots (30) by the number of seeds in each pot (10). Thus making the answer 300.

I hope this helps!

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3 years ago
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3 years ago
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