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3 years ago

I need some help pls

Mathematics

2 answers:

Sveta_85 [38]3 years ago

6 0

3x-24 = x+10
-x = -x
———————-
2x-24 = 10
+24 = +24
———————
2x = 24
/2 = /2
———————
x = 17

STALIN [3.7K]3 years ago

5 0

I hate these algebra questions pretending to be geometry. I can't even tell on this one if those are the arc measures or segment length. It doesn't matter, they're equal; geometry done.

3x - 24 = x + 10

2x = 34

x = 17

Answer: a 17

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Step-by-step explanation:

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

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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.

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

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1) decrease in the first day.

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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:

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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.

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