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3 years ago

Help me please i dont know

Mathematics

1 answer:

Lilit [14]3 years ago

7 0

Answer:

I would graph the equation by creating the graph and identifying my variables; x will be my sweatshirts sold, and y will be my money collected. I would then plot my data onto the graph, leaving me with a line representing how much money is collected per each sweatshirt sold.

Step-by-step explanation:

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Find the vertex of the parabola y=9x^2+14x+10 and determine whether it is a min or maximum. The vertex is the point (__,__) and

Savatey [412]

I think it would a minimum because its positive. and the vertex would be (-.77,4.55) the minimum is 4.55

5 0

3 years ago

Suppose box A contains 4 red and 5 blue poker chips and box B contains 6 red and 3 blue poker chips. Then a poker chip is chosen

sergejj [24]

Answer:

0.5172 = 51.72% probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Coin chosen from box B is red.

Event B: Blue poker chip transferred.

Probability of choosing a red coin:

7/10 of 4/9(red coin from box A)

6/10 of 5/9(blue coin from box A). So

$P(A) = \frac{7}{10}*\frac{4}{9} + \frac{6}{10}*\frac{5}{9} = \frac{28 + 30}{90} = 0.6444$

Blue chip transferred, red coin chosen:

6/10 of 5/9. So

$P(A \cap B) = \frac{6}{10}*\frac{5}{9} = \frac{30}{90} = 0.3333$

What is the probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red?

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.3333}{0.6444} = 0.5172$

0.5172 = 51.72% probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red

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2 years ago

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Sergeu [11.5K]

Answer:

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Step-by-step explanation:

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3 years ago

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8090 [49]

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3 years ago

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kolbaska11 [484]

Answer:

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2 years ago