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docker41 [41]
3 years ago
5

If 4^(x+2) = 48 what is 4^x

Mathematics
1 answer:
ivanzaharov [21]3 years ago
4 0

Answer:

3

Step-by-step explanation:

4^{(x+2)} = 48  \\  \\  {4}^{x} . {4}^{2}  = 16.3 \\  \\  {4}^{x} . \cancel {16}  = \cancel {16} .3 \\  \\  {4}^{x}  = 3

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How do you do this??<br> 14cents/oz = $__/Ib<br> ????????????????
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Answer:

$2.24 / lb

Step-by-step explanation:

$1 = 100 cents

16 oz = 1 lb

14 cents/oz *\frac{1 dollar}{100 cents}*\frac{16oz}{1lb}

Simplified,

\frac{14 *16}{100}

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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
steposvetlana [31]

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
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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.

  • The probability of drawing the second queen is also  4/52 and the third is 4/52.
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  • P(Q)P(Q)P(Q) = (4/52)(4/52)(4/52) = .00004 which is very small but not impossible.
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5 0
3 years ago
The boiling pint of jet fuel is 329 Fahrenheit! Rounded to the nearest degree, what is the temperature in sergers Celsius? Use t
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Answer:

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Step-by-step explanation:

3 0
3 years ago
YALL ARE WIZARDS IF YALL CAN DO IT
gayaneshka [121]

Answer:

So, lets say the refridgerator started at 37 degrees F alright?

Step-by-step explanation:

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So the final temurature at 2:00pm would be 31 degrees F

Hope this helped :)

7 0
2 years ago
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