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raytiller1
What is the 20th term of the arithmetic sequence 2, –4, –10, … ?
the formula for 'n'th term is a+(n-1)d.....a is first term,d is common difference...,does this help?
the difference is -6. use the formula and 'a' is the first number of the sequence which is 2. help?
this are my choices –130 –124 –118 –112
@hartnn @mathsloser56
do the math, and youll find it.
did u put values in formula?its easy calculation...
idk how to do it thats why i asked.. but thanks.
T(n) = a + (n-1)d .use this formula for T(20)
a is the first number, 2 n is the \[n^{th}\] you want, which is 20 d is the common difference between the numbers, which is -6