Write an expression to describe the sequence below. use n to represent the position of a term in the sequence, where n = 1 for the first term. -10, -20, -30, -40,

+- 10n

Step-by-step explanation:

✯Hello✯

↪  We need to work out the nth term rule

↪  We can do this by finding the differences between the numbers and using the rules

2A

3A+B

A+B+C

↪  (Sorry I cant draw a table for you)

↪  Using the rules and drawing a table we get the final answer

+- 10N

❤Gianna❤

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.