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3 years ago

Please give the y intercept, slope, and x intercept of y=6x−7. All of them, not just one or two!

Mathematics

1 answer:

BARSIC [14]3 years ago

7 0

Answer:

Slope = 6, y intercept = -7, x intercept = 7/6

Step-by-step explanation:

Slope = 6

y intercept = -7

x intercept = 7/6

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A card is drawn from a standard 52 card deck.What is the probability that the card is a red 8, given that the card is an 8?

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Suppose you have two urns with poker chips in them. Urn I contains two red chips and four white chips.Urn II contains three red

lorasvet [3.4K]

Answer:

$P(R_{2}) =\frac{10}{15} = 0.667$

Step-by-step explanation:

Step 1: Understanding the possible events

Selecting a chip from Urn I and then adding that chip to Urn II and then selecting a red chip from Urn II can be completed in two ways:

A. Selecting a red chip from Urn I and adding it to Urn II and then selecting a red chip from Urn II

B. Selecting a white chip from Urn I and adding it to Urn II and then selecting a red chip from Urn II

Therefore total probability is:

$P(R_{2}) = P(A) + P(B)$

Step 2: Probability of selecting either chip from Urn I

Urn I contains 2 reds and 4 white chips, that gives a total of 6 chips.

$P(R_{1}) = \frac{2}{6} =\frac{1}{3}$

$P(W_{1}) = \frac{4}{6} =\frac{2}{3}$

Step 3: Probability of selecting a red chip from Urn II

Urn II originally contains 3 reds and 1 white chip, that gives a total of 4 chips.

Remember: Once a chip is added from Urn I to Urn II the total number of chips will increase in the Urn II

Case 1: When a red chip is added from Urn I to Urn II

Red chips = 4

White chips = 1

Total Chips = 5

$P(R_{2_1}) = \frac{4}{5}$

Case 2: When a white chip is added from Urn I to Urn II

Red chips = 3

White chips = 2

Total Chips = 5

$P(R_{2_2}) = \frac{3}{5}$

Therefore the total Probability of selecting a chip from Urn I and then adding that chip to Urn II and then selecting a red chip from Urn II can be calculated as:

$P(R_{2}) = P(A) + P(B)$

$P(R_{2}) = P(R_{1}) . P(R_{2_1}) + P(W_{1}) . P(R_{2_2})$