Ask question

Ask question

All categories

3 years ago

7

A bag contains 4 gold marbles, 9 silver marbles, and 29 black marbles. the rules of the game are as follows: you randomly select

one marble from the bag. if it is gold, you win $6, if it is silver, you win $2. if it costs $1 to play, what is your expected profit or loss if you play this game?

1 answer:

Lera25 [3.4K]3 years ago

3 0

The solution is attached as a word file

You might be interested in

Plss. pa answers ?<br><br>thanks po<br><br>

Lana71 [14]

Answer:

<h3>Graph 3</h3>

Line starting at x = -2

<u>Domain</u>: x ≥ -2
<u>Range</u>: y ≥ 0

<h3>Graph 4</h3>

Vertical line

<u>Domain</u>: x = 3
<u>Range</u>: y = any real number

<h3>Graph 5</h3>

Quadratic function with negative leading coefficient and max value of 3

<u>Domain</u>: x = any real number
<u>Range</u>: y ≤ 3

<h3>Graph 6</h3>

Curve with non-negative domain and min value of -2

<u>Domain</u>: x ≥ 0
<u>Range</u>: y ≥ -2

<h3>Graph 7</h3>

Line with no restriction

<u>Domain</u>: x = any real number
<u>Range</u>: y = any real number

<h3>Graph 8</h3>

Quadratic function with positive leading coefficient and min value of 4

<u>Domain</u>: x = any real number
<u>Range</u>: y ≥ 4

<h3>Graph 9</h3>

Parabola with restriction at x = -4

<u>Domain</u>: x = any real number except -4
<u>Range</u>: y = any real number

<h3>Graph 10</h3>

Square root function with star point (2, 0)

<u>Domain</u>: x ≥ 2
<u>Range</u>: y ≥ 0

5 0

3 years ago

Help me PLZZZZZZZ!!!!!!

eduard

Answer:

25% decrease

Step-by-step explanation:

Take the original amount of books and subtract the new number of books

20 -15 = 5

Divide by the original amount of books

5/20 = .25

Multiply by 100%

25%

It is a decrease since the amount went down

25% decrease

7 0

3 years ago

Because the graph below is misleading, which magazine appears to have about four times the circulation of Circuitry Today?

OverLord2011 [107]

I think the answer is b

7 0

3 years ago

. Which ordered pairs in the form (x, y) are solutions to the equation 7x – 5y = 28?

Brut [27]

we know that

If a ordered pair (x,y) is a solution of the equation, then the ordered pair must satisfy the equation

we have the equation

$7x-5y=28$

Let's verify all the cases to determine the solution to the problem.

<u>case A)</u> point $(-6,-14)$

Substitute the values of x and y in the equation

$x=-6\\y=-14$

$7(-6)-5(-14)=28$

$-42+70=28$

$28=28$ -------> is true

therefore

The point $(-6,-14)$ is a solution of the equation

<u>case B)</u> point $(-1,-7)$

Substitute the values of x and y in the equation

$x=-1\\y=-7$

$7(-1)-5(-7)=28$

$-7+35=28$

$28=28$ -------> is true

therefore

The point $(-1,-7)$ is a solution of the equation

<u>case C)</u> point $(4,10)$

Substitute the values of x and y in the equation

$x=4\\y=10$

$7(4)-5(10)=28$

$28-50=28$

$-22=28$ -------> is not true

therefore

The point $(4,10)$ is not a solution of the equation

<u>case D)</u> point $(7,9)$

Substitute the values of x and y in the equation

$x=7\\y=9$

$7(7)-5(9)=28$

$49-45=28$

$4=28$ -------> is not true

therefore

The point $(7,9)$ is not a solution of the equation

therefore

<u>the answer is </u>

$(-6,-14)$

$(-1,-7)$

8 0

3 years ago

Read 2 more answers

The college bookstore tells prospective students that the average cost of its textbooks is $92 per book, with a standard deviati

elena55 [62]

Answer:

Following are the solution to the given question:

Step-by-step explanation:

Please find the attached file for the solution.

4 0

3 years ago