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N76 [4]
3 years ago
5

1. Consider a lottery with three possible outcomes:-$125 will be received with probability 0.2-$100 will be received with probab

ility 0.3-$50 will be received with probability 0.5a. What is the expected value of the lottery
Mathematics
1 answer:
Norma-Jean [14]3 years ago
3 0

Answer:

The expected value of the lottery is $80

Step-by-step explanation:

To get the expected value, we have to multiply each outcome by its probability

Then we proceed to add up all of these to get the expected value of the lottery

we have this as ;;

125(0.2) + 100(0.3) + 50(0.5)

= 25 + 30 + 25 = $80

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Standard Form:

a) 0.00000678

b) 3170000

Scientific Notation:

a) 6 × 10^{4}

b) 6.78 × 10^{-6}

Is this what you meant?

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Find the distance between the points (-2, 4) and (4, -6).<br> 0 212<br> 2/(10)<br> O2V(34)
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Answer:

2\sqrt{34}

Step-by-step explanation:

Calculate the distance (d) using the distance formula

d = √(x₂ - x₁ )² + (y₂ - y₁ )²

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d = \sqrt{(4+2)^2+(-6-4)^2}

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3 years ago
Combine like terms to create an equivalent expression 3.4 - 2.8d + 2.8d - 1.3
zalisa [80]

Answer:

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Step-by-step explanation:

The given expression is 3.4 -2.8d + 2.8d -1.3

Let's see the definition of like terms.

Like terms are the terms having the same variable and the same exponents.

Examples: -3xy, 2xy  and 4y, 5y and -3, 2.

Now let's identify the like terms from the given expression.

3.4 -2.8d + 2.8d -1.3

Here the like terms are -2.8d, +2.8d and 3.4, -1.3

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The answer is 2.1

6 0
3 years ago
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I need help asap!!!!!
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Answer: 130

In order to solve for <4, you need to know that supplementary angles add up to 180°. 
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**For future questions**
1. The sum of the interior angles of a triangle is 180°
2. Alternate interior angles are congruent
3. The exterior angle of a triangle is the sum of the nonadjacent interior angles

See attachment below. 

4 0
3 years ago
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