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Alenkasestr [34]
4 years ago
6

If I have a

iddle" class="latex-formula"> chess board, in how many ways can I place four distinct pawns on the board such that each column and row of the board contains no more than one pawn?
Mathematics
1 answer:
SOVA2 [1]4 years ago
7 0

Answer:

576 ways

Step-by-step explanation:

There are 4 choices for the column of pawn in the 1st row

There are 3 choices for the column of pawn in the 2nd row,

There are 2 choices for the column of pawn in the 3rd row, and

There is 1 choice for the column of the pawn in the 4th row

Which gives a total of 4! = 24

Also, the pawns are distinct, so there are 4! ways to place them in these chosen positions;

4! = 24

So, there are 24 * 24 possible ways

= 576 ways

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A geometric sequence has an initial value of 2 and a common ratio of 3. Which formula would be more practical to use if you were
Makovka662 [10]

Answer:

19th term = ar^18

19th term = 774,840,978

Step-by-step explanation:

First term, a = 2

Common ratio, r = 3

nth term of a geometric sequence = ar^(n-1)

19th term = ar^(19-1)

19th term = ar^18

= 2 × 3^18

= 2 × 387,420,489

= 774,840,978

19th term = 774,840,978

8 0
3 years ago
If two angles of a triangle are 10 degrees and 20 degrees, then the triangle is ????​
Wewaii [24]

Answer:

Scalene

Step-by-step explanation:

Because all triangular angles add up to 180 degrees.

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180-30=150

None of those angles are the same.

5 0
3 years ago
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Jalene lost 12 pounds in the first 3 weeks of his diet if he lost a total of 84 pounds how many weeks did it take him
sertanlavr [38]

Answer:

21 weeks.

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To start, you have to get the pounds lost per week.

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4 pounds lost per week.

Next, find out how many weeks it takes by solving this equation,

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6 0
3 years ago
3. The MPG (Miles per Gallon) for a mid-size car is normally distributed with a mean of 32 and a standard deviation of .8. What
mariarad [96]

Answer:

93.32 %

Step-by-step explanation:

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from z-score table this corresponds to .9332     this is  93.32 %

8 0
2 years ago
A recipe calls for 1/4
Tom [10]
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3 0
3 years ago
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