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3 years ago

A circle has diameter 9cm a square has side length 5 cm

Mathematics

1 answer:

Zinaida [17]3 years ago

7 0

Answer:

Step-by-step explanation:

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The length of a rectangle is 5 inches more than twice a number.The width is 4 inches less than the same number.If the area of th

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Answer:

n = 5, n = -7/2

Step-by-step explanation:

2n + 5 = l

n - 4 = w

A = l × w = 15

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2n^2 - 8n + 5n - 20 = 15

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3 years ago

1)How many ways can the letters in the word BOOKKEEPER be arranged? (Must show set-up )

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Question 1

There are 5 letters (B, O, K, E, R) and there is a total of 10 letters to make up the word.
There are $\frac{10!}{(10-6)!6!}$ ways of arranging the letters, which equal to 210 ways

Question 2

There are seven swimmers in total.
There are $\frac{7!}{(7-1)!1!}$ ways of choosing the first winner, which is 7 ways
There are $\frac{6!}{(6-1)!1!}$ ways of choosing the second winner, which is 6 ways
There are $\frac{5!}{(5-1)!1!}$ ways of choosing the third winner, which is 5 ways
There are 7×6×5=210 ways of choosing first, second, and third winner

Question 3

The probability of eating an orange and a red candy is $\frac{15}{31}$ × $\frac{9}{30}$ , which equals to $\frac{9}{62}$

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3 years ago

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Answer:

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Step-by-step explanation:

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