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3 years ago

The value of b when solving the equation 2 (6 + 12) = 16 is:

Mathematics

1 answer:

elena-s [515]3 years ago

8 0

Answer:

Step-by-step explanation:

2(6+12)=16

2 X 6 + 2 X 12

12 + 24

26 = 16

HOPE U GE5T IT

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One third divided by 2 1/4 equal what

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An English teacher needs to pick 1111 books to put on his reading list for the next school year. He has narrowed down his choice

forsale [732]

Answer:

There are 3,659,040 ways he can choose the books to put on the list.

Step-by-step explanation:

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12 novels

8 plays

12 nonfiction.

He wants to include

5 novels

4 plays

2 nonfiction

The order in which the novels, plays and nonfictions are chosen is not important. So we use the combinations formula to solve this problem.

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

How many ways can he choose the books to put on the list?

Novels:

5 from a set of 12. So

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Plays:

4 from a set of 8. So

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2 from a set of 12

$C_{12,2} = \frac{12!}{2!10!} = 66$

Total:

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3 years ago

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zhannawk [14.2K]

Answer:

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A = 1/2 (b1+b2) *h

= 1/2 ( 6+10) * 2

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