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satela [25.4K]
3 years ago
9

I need help with this if you are right I will mark you

Mathematics
1 answer:
Dafna11 [192]3 years ago
8 0
158 this does not need to be twenty charters as it is a multi choice question
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If f(x) = 4x-1 +6 and g(x) = 2x-5, what is (f - g)(x)?
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Answer: Who in god f##k knows this

Step-by-step explanation: LIKE BE FORREAL

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A simplified model for the movement of the price of a stock supposes that on each day the stock’s price either moves up 1 unit w
DanielleElmas [232]

Answer:

(a) The probability that after 2 days the stock will be at its original price is

P_a=2p(1-p)

(b) The probability that after 3 days the stock’s price will have increased by 1 unit is

P_b=3p^2(1-p)

(c) Given that after 3 days the stock’s price has increased by 1 unit, the probability that it went up on the first day is

P=2/3

Step-by-step explanation:

(a) What is the probability that after 2 days the stock will be at its original price?

For the price of the stock to be in its original price, there are two ways it can happen:

1) the price increases the first day by one unit and decreases by one unit the second day. The probability of this event is P=p*(1-p).

2) the price decreases the first day by one unit and increases by one unit the second day. The probability of this event is P=(1-p)p.

The probability that after 2 days the stock will be at its original price is the sum of the probability of this two events:

P=P_1+P_2=p(1-p)+(1-p)p=2p(1-p)

(b) What is the probability that after 3 days the stock’s price will have increased by 1 unit?

For this event to happen (one unit increase in 3 days), it must have happened 2 increases in price and 1 decrease.

There are 3 possible ways of this to happen:

1) decrease in the first day.

2) decrease in the second day.

3) decrease in the third day.

Each one ot this 3 events has the same probability P_i=p^2(1-p).

So the probability that after 3 days the stock’s price will have increased by 1 unit is equal to the sum of the probabilities of this events:

P=P_1+P_2+P_3=3p^2(1-p)

(c) Given that after 3 days the stock’s price has increased by 1 unit, what is the probability that it went up on the first day?

According to the answer (c), there are 3 events where the price has increase by one unit after 3 days, each one with equal probability P_i=p^2(1-p).

Of these 3 events, there are 2 that have an increase in the first day. So we can conclude that, if the events have the same probability, the probability of the increase in the first day, given that the price has increased by one unit in 3 days, is P=2/3.

8 0
4 years ago
Juliette spends $6.12 at the store Morgan spends 3 times as much as Juliette Jonah spends $4.29 more than Morgan how much money
lions [1.4K]
6.12 x 3=18.36
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convert to money = $22.65

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3 years ago
A self-serve car wash charges $5.87 to use its facilities, plus an additional $0.59 for each minute the customer is at the self-
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$0.59 x 8 = 4.72

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3 years ago
Each small square in the graph paper represents 1 square unit. tap picture.
mario62 [17]

Answer: The answer is 96 square units.

Step-by-step explanation:

(Because it's 8 square units long and 12 square units wide. L x W = Area)

So you have to do 12 x 8 and you should get the answer 96 square units.

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4 years ago
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