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3 years ago

A die is rolled. If it rolls to a 1, 2, or 3 you win $2. If it rolls to a 4, 5, or 6 you lose $1. Find the expected winnings.

Mathematics

1 answer:

Maurinko [17]3 years ago

8 0

Answer:

A. $0.5

Step-by-step explanation:

In this question half of the time your winning is 2 dollars and also the other half of the time your loss is one dollar

The expectation is that after you must have had 2 rolls you would get 2 dollars once and also you are going to lose 1 dollar once. So what you won overall would be 1 dollar.

So the correct answer would be gotten from $1/2rolls

= $0.50

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Answer:

(3,4)

Step-by-step explanation:

y= -4x + 8

x = 3

y= -4(3) +8

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3 years ago

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$\huge \bf༆ Answer ༄$

Let's solve ~

$\qquad \looparrowright \sf - 7 \sqrt{80 {x}^{4} y {}^{2} }$

$\qquad \looparrowright \sf - 7 \sqrt{2 {}^{4} \times 5 \times {x}^{4} \times {y}^{2} }$

$\qquad \looparrowright \sf - 7 \times {2}^{2} \times {x}^{2} \times y \times \sqrt{5}$

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Therefore, Option D is correct ~

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3 years ago

At the beginning of the day the stock market goes up 30 1/2 points.At the end of the day the stock market goes down 120 1/4 poin

iris [78.8K]

Answer:

The total change in the stock market from the beginning of the day to the end of the day is $-89\frac{3}{4}$ or the stock market goes down $89\frac{3}{4}$

Step-by-step explanation:

At the beginning of the day the stock market goes up $30\frac{1}{2}$ points. This means, we have to add $30\frac{1}{2}$

At the end of the day the stock market goes down $120\frac{1}{4}$ points. This means, we have to subtract $120\frac{1}{4}$

Change $=+30\frac{1}{2}-120\frac{1}{4}=(30-120)+\left(\frac{1}{2}-\frac{1}{4}\right)=-90+\frac{1}{4}=-89\frac{3}{4}$

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3 years ago

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Step-by-step explanation:

12=2x+y

that's what I got hope this helps u broo

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3 years ago

Help with only this 3 questions please!

elena-s [515]

1. x = 32° 2. x = 23° 3. x = 30°

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3 years ago