Identify the 12th term of the arithmetic sequence in which a7 = 40 and a18 = 106.

we are given

airthematic sequence

we can use nth term formula

n is number of terms

an is nth term

d is common difference

a1 is first term

We are given

a7=40

we can use it

a18 = 106

we can subtract both equations

now, we can find a1

we can plug d=6

12th term:

now, we can plug values

so, 12th term is 70...........Answer

a) t'(-3, 6) and v'(0, 3)  

step-by-step explanation:

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this