What is the 4th term of the expansion of (1 - 2x)" if the binomial coefficients are taken from the row of Pascal's triangle shown below?
1 6 15 20 15 6 1

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

Which of the following is the equation that says that the product of a number and ten is equal to 20 percent of that number ? a) 10n= 2.0n b) 10+n=.20n c) n+ .20n=10 d) 10n=0.20n

Based on the spreadsheet below, which of the following is a true statement?