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Mathematics

1 answer:

inessss [21]4 years ago

7 0

D is the answer. Hope this helps!

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Find the absolute value |7/10|

Alex Ar [27]

The correct answer is 7/10. Absolute value is a way to measure the magnitude of a number, whether the number is negative or positive. Because magnitude cannot be negative, the result will always be positive. Because the number is already positive (and will always be positive, as there are no variables to change that), the absolute value signs can be dropped.

4 0

3 years ago

A new game is being introduced at the Hard Rock Cafe. A ball is spun around a wheel until it comes to rest in one of many spots.

andriy [413]

Answer:

$ 1.96

Step-by-step explanation:

Number of spots with outcome of $1 = 9

Number of spots with outcome of $2 = 18

Number of spots with outcome of $10 = 1

Total number of spots = 28

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:

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