17. The science club members are to work in pairs on an experiment. a) If there are eight members present, in how many ways can the pairs be formed? [105] b) If Louis and Simone will not work together, how many different pairs can be formed? [90]

Q: Evaluate,C. O a a 9 1 5,040 Ob Ос Od 7

A: We know thatThe formula for combination isC(n, r) = nCr            = n!/(n-r)!r!

Q: how is the value of the 7 in 702,150 related to the value of the 7 in 73,026

A:

Q: The expression V2 V25 is equivalent to

A: Given expression: 23·254

Q: 114 19

A:

Q: what number is equal to 3hhousands + 7tens +5ones

A: 3thousands + 7tens +5ones

Q: what is 96 time 24

A: Multiplication is one of the basic elementary operations in mathematics. It can be defined as the…

Q: What is 9•8

A:

Q: What is the value of the 2s in 17,242,551

A:

Q: What is the numerical expression of 126 less then -68

A: The objective of the question is to find the numerical expression of '126 less than -68'. In…

Q: The differece between aa two digit number and that number reversed is 18 what can the number be?…

A:

Q: is 15.5 a integer

A: The given statement is

Q: The number 1,969,274,050 is between what two numbers in the ten millions? Enter the smaller number…

A: Given question:- The number 1,969,274,050 is between what two numbers in the tem millions

Q: 100! 11) 96!

A: The question is likely to be 100!/96!  .

Q: Is 90 and 92 True or False

A: 90) Given that f(x)=1/x is concave downward for x<0 and concave upward for x>0 and thus it has…

Q: 6. Simplify 9! Answer: (4)

A: The objective of this question is to simplify the factorial of 9, denoted as 9!. The factorial of a…

Q: What is 57+39

A: We want to find sum of 57 and 39

Q: I need help with 15 and the answer is 576.

A: We have to find the double integration

Q: Niding Pohynomials Simputit 15,10

A:

Q: How to create three different numbers with a gcf of 6 and lcm of 630?

A: Here is the answer below:

Q: what is 100 dived by 100

A:

Q: 3.) 144-6

A:

Q: What is the opposite of the number -5?B)

A: The opposite of a number is its additive inverse. The sum of a number and its opposite is always…

Q: what is 23 divided 3

A: Terms in division: Dividend = The number being divided Divisor    = Number that will  divide the…

Q: What is the answer to 77?

A: (a) From the graph (a), the left hand limit is different from the right hand limit. So, the limit x…