Mathematics, 11.06.2020 16:57 wildfire771003
(a) There are $n$ chairs in a row. Find the number of ways of choosing $k$ of these chairs, so that no two chosen chairs are adjacent.
(b) There are 10 chairs in a circle, labelled from 1 to 10. Find the number of ways of choosing 3 of these chairs, so that no two chosen chairs are adjacent.
(c) There are $n$ chairs in a circle, labelled from 1 to $n.$ Find the number of ways of choosing $k$ of these chairs, so that no two chosen chairs are adjacent.
Answers: 2
Mathematics, 21.06.2019 14:30
Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12
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Mathematics, 21.06.2019 18:00
Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.
Answers: 3
Mathematics, 21.06.2019 18:30
What is the prime factorization of 23 ?me with this question
Answers: 1
(a) There are $n$ chairs in a row. Find the number of ways of choosing $k$ of these chairs, so that...
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