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ArbitrLikvidat [17]
3 years ago
13

In how many ways can 4 books be arranged on a shelf if there are 8 books to choose from?

Mathematics
1 answer:
dsp733 years ago
8 0

Answer:

1680 ways

Step-by-step explanation:

By using the formula for permutation, which is nPr=n!/(n-r)!,

8P4=8!/(8-4)!

=8!/4!

=8×7×6×5

=1680

Or if you just want to use the multiplication rule (which is simpler).

8×7×6×5=1680

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3 years ago
Jane brought x shirts for $20 each and y skirts for $25 each she spent $210 in all. which equation represents this situation 2
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Answer:

Part A

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3 years ago
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2 years ago
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The ball followed a path modelled by the equation h = −0.001! + 0.5 + 2.5 where h is the height of the ball in feet and is the

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The ball followed a path modelled by the equation h = −0.001! + 0.5 + 2.5 where h is the height of the ball in feet and is the

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3 0
2 years ago
What Is the value of the y-intercept of the graph of h(x)=29(5.2)^x
Elan Coil [88]

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6 0
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