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postnew [5]
3 years ago
8

A bag contains 4 gold marbles, 5 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 $3. 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
1 answer:
kkurt [141]3 years ago
5 0

Answer:

Step-by-step explanation:

you have a 29 of 38 chance at lossing

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Simplification please
GrogVix [38]

Answer:

5

Step-by-step explanation:

WHen we raise a power to a power, we multiply them, in this case 5 is the base so we can just ignore it for now and replace it with x.

(X^1/3)^3

Multiply 1/3 by 3 and we get 1

So:

X^1

Which does nothing, so we can simplify to just:\

X

Remember x is 5 so the answer is:

5

7 0
3 years ago
PLEASE HELP ME I'M CLUELESS!!​
Elodia [21]

Answer:

352.7 m

Step-by-step explanation:

Distance from the cliff 2000m

Angle = 10°

How tall is the cliff?

We solve the above question using the trigonometric function of Tangent

tan θ = Opposite/Adjacent

Opposite = x

Adjacent = 2000m

θ = 10°

Hence:

tan 10 = x/2000m

Cross Multiply

x = tan 10 × 2000m

x = 352.65396142 m

Approximately = 352.7 m

The cliff is 352.7 m tall

4 0
3 years ago
​ <br> −7x−2y=14<br> 6x+6y=18<br> ​ <br> Graph the system of equations.
Maurinko [17]
X= -4
y= 7

you can multiply the top equation by 3, then both y's are cancelled or zeroed out. You add -21 and 6 to get -15x. Than you add 42 and 18 to get 60. So, -15x=60 and from there you do 60/-15 to get x=-4. Plug in what you got for x into any of the two equations to get y, which is 7.
3 0
3 years ago
Which situation results in a solution of zero?
tensa zangetsu [6.8K]

Answer: C

Step-by-step explanation:

8 0
3 years ago
What 21 divided by 21​
Volgvan
The correct answer is 1. Hope this helps!!
5 0
3 years ago
Read 2 more answers
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