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Annette [7]
4 years ago
13

Does anyone kno the simplified version of (3/2 x - 2) + (3/2x - 1)

Mathematics
1 answer:
blagie [28]4 years ago
7 0
( \frac{3}{2}x - 2) + ( \frac{3}{2}x - 1) = \frac{3}{2}x - 2 + \frac{3}{2}x - 1 = ( \frac{3}{2}x + \frac{3}{2}x) +(-1-2)

So we see it equals 3x-3
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The probability of drawing two aces from a standard deck is 0.0059. We know this probability, but we don't know if the first car
vampirchik [111]

A standard deck of playing cards consists of 52 playing cards.

1. Count the probability of drawing two aces from a standard deck without replacment.

Among 52 playing cards are 4 aces, then the probability to select first ace is 4/52=1/13. After picking out first ace, only 3 aces left and in total 51 playing cards left, then the probability to select second ace is 3/51=1/17. Use the product rule to find the probability to select two aces without replacement:

\dfrac{1}{13}\cdot \dfrac{1}{17} =\dfrac{1}{221}\approx 0.0045.

2. Count the probability of drawing two aces from a standard deck with replacment.

Among 52 playing cards are 4 aces, then the probability to select first ace is 4/52=1/13. After picking out first ace, this card was returned back into the deck and the probability to select second ace is 4/52=1/13 too. Use the product rule to find the probability to select two aces with replacement:

\dfrac{1}{13}\cdot \dfrac{1}{13} =\dfrac{1}{169}\approx 0.0059.

3. If events A and B are independent, then Pr(A\cap B)=Pr(A)\cdot Pr(B).

All these three steps show you that the first card was replaced and events are independent.

7 0
4 years ago
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A tent that initially sold for $68.00 is on sale for 21% off. What is the sale price of the tent?
quester [9]

Answer:

Hey!

Try this!

   Take the original price.

   Divide the original price by 5.

   Alternatively, divide the original price by 100 and multiply it by 20.

   Subtract this new number from the original one.

   The number you calculated is the discounted value.

   Enjoy your savings!

7 0
3 years ago
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How are the steps for making perpendicular lines with a drawing program and a compass & straightedge similar?
vampirchik [111]
They both use the intercections of arcs to find the line. I think.
5 0
4 years ago
I NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!
topjm [15]

Answer:

30/16 = 15/8

15/8 is the final answer

Step-by-step explanation:

8 0
3 years ago
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Find the nth term of this quadratic sequence 3,8,15,24,35...
iris [78.8K]

Answer:

n^2 + 2n.

Step-by-step explanation:

n       =       1     2     3     4     5

term t =     3    8     15   24   35

Diffs  =          5    7      9     11

                        2     2     2             - so the nth term contains n^2.

n^2   =       1     4      9    16    25

t - n^2 =    2    4      6     8     10

This is an arithmetic sequence with nth term = 2 + (n-1)2 = 2n

So the nth term of the quadratic sequence = n^2 + 2n.

8 0
3 years ago
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