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3 years ago

Someone please help me. F+4/g = 6

Mathematics

2 answers:

icang [17]3 years ago

6 0

F=-4 is the answer
yuhvfg

Gekata [30.6K]3 years ago

3 0

Answer:

if you're solving for F it would be F= -4/g+6

If you're solving for g it would be g= 4/f-6

Step-by-step explanation:

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g Suppose I will flip a fair coin until it lands Heads for the first time, and you will receive $2 if the game lasts for 1 round

Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

The main idea is that I would like to pay less than what I'm expecting to win, so in that way, I get a profit out of playing this game. Let X be the number of tosses until I get a Heads. By definition, this is a geometric random variable with parameter p = 1/2.

Let Y the amount I received for playing. So, we want to calculate the expected value of Y.

We can calculate it as follows

$E[Y] = 2 P(X=1)+ 4 P(X=2)+ 8 P(X =3) + \dots = \sum_{n=1}^infty 2^n P(X=n)$

Since X is a geometric random variable, we have that $P(X=n) = (\frac{1}{2})^{n-1}\frac{1}{2}$

Then,

$E[Y] = \sum_{n=1}^\infty 2^{n} (\frac{1}{2})^{n-1} \frac{1}{2} = \sum_{n=1}^\infty 2^{n-1} \cdot \frac{1}{2^{n-1}} = \sum_{n=1}^\infty 1 = \infty$

So, we expect to have an infinite amount. Given this, we can pay as much as we want to play the game.

5 0

3 years ago

I need help with problems 2, 3, 5, 6, 11 and 12. I'm having trouble with those thanks.

goldfiish [28.3K]

#2:

(-1)+(1)=0

(this is true)

3(-1)-3(1)=0

-3-3=0

(this is false, it equals -6)

Answer: No

#3:

3(1)-2(2)=1

3-4=1

(this is false, it equals -1)

Answer: No

#5:

2(2)+(-4)=0

4-4=0

(this is true)

-(2)+2(-4)=10

-2-8=10

(this is false, it equals 6)

Answer: No

#6:

3(5)-4(3)=3

15-12=3

(this is true)

4(5)-3(3)=11

20-9=11

(this is true)

Answer: Yes

#11:

(I tried translate the graphs to text since I can't add pictures)

Line A crosses through the points (-2,4) and (4,-2)

Line B crosses through the points (-2,0) and (2,4)

Those two lines should intersect at (0,2)

This system is classified as consistent independent

#12:

Line A crosses through the points (-2,5) and (5,-2)

Line B crosses through the points (-2,0) and (0,-2)

Those two lines should NOT intersect, they're parallel to each other

The system is classified as inconsistent

I hope you get a good grade on your work! Be sure to take a short break during your work and do something you enjoy :)

5 0

4 years ago

Manuel earns $42.94 walking his neighbor's dog. He puts half the money in a savings account. The rest he keeps for spending mone

spayn [35]

$10.34 thats the answer

7 0

3 years ago

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Alex drives at an average speed that is 3/4 of the average speed that Roy's train travels. Alex takes 40 minutes to travel 65 km

Fudgin [204]

Answer:

Distance = 162.5 to 2dp.

Step-by-step explanation:

Alex car drives 65km = 40mins we round up to 1hr

= 1/2 x 65 + 65 = 32.5 +65 = 97.5 km p/h

Roy is 1/4 faster (As Alex speed is 3/4 of Roy)

To find 3/4 we divide by 3 then, add the 97.5 km etc..

97.5/3 = + 32.5km = 130 km/ph

To check we only have to divide by 4

130 / 4 = 32.5

We know 32.5 is 1/4 we can add this on as 15minutes.

130 km = 1hr +

32.5 km = 15 mins

Distance = 162.5 km

3 0

3 years ago

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A water tank is leaking water at a rate of 300 gallons per minute. What is this rate in gallons per second

irakobra [83]

Answer:

5 gallons per second

Step-by-step explanation:

Step 1:

300 ÷ 60 = 5

Answer:

Hope This Helps :)

5 0

4 years ago

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