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sattari [20]
3 years ago
14

A bag contains 1 gold marbles, 6 silver marbles, and 29 black marbles. Someone offers to play this game: You randomly select one

marble from the bag. If it is gold, you win $4. If it is silver, you win $2. If it is black, you lose $1. What is your expected value if you play this game?
Mathematics
2 answers:
pentagon [3]3 years ago
7 0

Answer:

the expected value is -$1

algol [13]3 years ago
4 0

Answer:

7$ it is

Step-by-step explanation:

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lilavasa [31]

Answer:

Step-by-step explanation:

8 0
3 years ago
If you shift the linear parent function, (X) = x down 6 units, what is the
jeka94

Answer:

<h2>C. g(x) = x - 6</h2>

Step-by-step explanation:

For a parent function y = f(x) and n > 0:

f(x) + n : move the graph n units up

f(x) - n : move the graph n units down

f(x + n) : move the graph n units to the left

f(x - n) : move the graph n units to the right

===================================================

We have

f(x) = x

Transformation: 6 units down

f(x) - 6 = x - 6

3 0
3 years ago
The equation of a straight line is 3y + 9x -12 =0. Use the equation to find the
Debora [2.8K]

Answer:

-3

Step-by-step explanation:

Divide through the equation by the leading coefficient to obtain:

y+3x-4=0

y=4-3x

and our gradient is -3

3 0
3 years ago
3 over x minus 2 equals 1 over x
iogann1982 [59]

9514 1404 393

Answer:

  x = 1

Step-by-step explanation:

As written, we must interpret your equation as ...

  \dfrac{3}{x}-2=\dfrac{1}{x}\\\\\dfrac{2}{x}=2\qquad\text{add $2-\dfrac{1}{x}$}\\\\x=\dfrac{2}{2}=1\qquad\text{multiply by $\dfrac{x}{2}$}

The value of x is 1.

3 0
3 years ago
26=5(x+10)+3x whatsy answer how do I get it??
olga_2 [115]
26 = 5 (x + 10) + 3x 
26 = 5x + 50 + 15x
26 = 5x +15x + 50
26 = 20x + 50
26 - 50 = 20x - 50
-14 = 20x
-14 / 20 = x
-0.7 = x
5 0
3 years ago
Read 2 more answers
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