3 years ago

a bookshelf holds 4 different biographies and 5 different novels. How many ways can one book of each type be selected?

1 answer:

8 0

Try 4!5! = 24*120 = 2880 different ways

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ladessa [460]

Answer:

1/4

Step-by-step explanation:

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3 years ago

asambeis [7]

X= 130 degrees since 180 is the total minus 50 from above

7 0

3 years ago

disa [49]

Answer:

Therefore, the probability is P=1/84.

Step-by-step explanation:

We have a bag contains 3 red and 6 white tokens. Tokens are randomly selected and removed one at a time until the bag is empty.

We conclude that in a bag have 9 tokens.

We calculate the probability that the red tokens are drawn consecutively.

We calculate the number of possible combinations:

$C_3^9=\frac{9!}{3!(9-3)!}=84\\\\$

Number of favorable combinations is 1.

Therefore, the probability is P=1/84.

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3 years ago

Masja [62]

Each blade is 360/5=72° apart from the next blade, so you would need to rotate the top fan by at least 72° to again line up with the bottom fan.

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3 years ago

uysha [10]

Answer:

x= -2

Step-by-step explanation:

hope this helped <3

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3 years ago