X-2=144Find all complex number solutions

1 answer:

7 0

Hey!

To start solving for x you'd need to add two to both sides of the equation. This will give us the variable, x, on its own.

Original Equation :
x - 2 = 144

New Equation {Added Plus Both Sides by Two} :
x - 2 + 2 = 144 + 2

Solutions {New Equation Solved} :
x = 146

So, since the answer can be simplified no longer, our final answer is x = 146.

Hope this helps!

— Lindsey Frazier ♥️

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Cards are drawn, one at a time, from a standard deck; each card is replaced before the next one is drawn. Let X be the number of

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Cards are drawn, one at a time, from a standard deck; each card is replaced before the next one is drawn. Let X be the number of draws necessary to get an ace. Find E(X) is given in the following way

Step-by-step explanation:

From a standard deck of cards, one card is drawn. What is the probability that the card is black and a jack? P(Black and Jack) P(Black) = 26/52 or ½ , P(Jack) is 4/52 or 1/13 so P(Black and Jack) = ½ * 1/13 = 1/26

A standard deck of cards is shuffled and one card is drawn. Find the probability that the card is a queen or an ace.

P(Q or A) = P(Q) = 4/52 or 1/13 + P(A) = 4/52 or 1/13 = 1/13 + 1/13 = 2/13

WITHOUT REPLACEMENT: If you draw two cards from the deck without replacement, what is the probability that they will both be aces?

P(AA) = (4/52)(3/51) = 1/221.

WITHOUT REPLACEMENT: What is the probability that the second card will be an ace if the first card is a king?

P(A|K) = 4/51 since there are four aces in the deck but only 51 cards left after the king has been removed.

WITH REPLACEMENT: Find the probability of drawing three queens in a row, with replacement. We pick a card, write down what it is, then put it back in the deck and draw again. To find the P(QQQ), we find the

probability of drawing the first queen which is 4/52.