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Greeley [361]
3 years ago
8

Solve for x rx+h=sx-k

Mathematics
1 answer:
lutik1710 [3]3 years ago
7 0

When solving the goal is to get x on one side and not x on the other.

rx + h = sx - k

rx - sx + h = -k                   <------- subtract sx from both sides

rx - sx = -k - h                   <-------subtract h from both sides

x (r - s) = -k -h                   <------factor out x which is in both rx and sx

x = - k - h / r - s                 <-------divide by r-s on both sides


The equation solved for x is x = \frac{-k - h}{r - s }

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Answer:

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Probability that ball will land on $1 = \frac{9}{28}

Probability that ball will land on $2 = \frac{18}{28}

Probability that ball will land on $10 = \frac{1}{28}

The amount that player should expect to win on average in equal to expected value of the game. Expected value is calculated as the summation of product of probabilities with their respective outcomes.

i.e. for this case:

Expected Value will be:

(1 \times \frac{9}{28})+(2 \times \frac{18}{28})+(10 \times \frac{1}{28})\\\\ =1.96

This means, on average the player should expect to win $ 1.96

7 0
4 years ago
Ma<br>Find the co-ordinate the image of a <br>point 6,4). Rotate it than<br>270<br>de acee​
telo118 [61]

Answer:

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Step-by-step explanation:

Under a counterclockwise rotation about the origin of 270°

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6 0
4 years ago
Five added to a number gives the sum of 39. what is the unknown number?
gregori [183]

Answer:

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Step-by-step explanation:

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4 years ago
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katrin [286]

Answer:

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Step-by-step explanation:

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The ratio of heights is the same:

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The linear dimensions of the projected image are 4 times those of the computer screen.

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The way the question is written, you may be expected to write this 1 to 4 ratio as the fraction 1 : 4 or 1/4.

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