Question

find the rule for: 2, 7, 12, 17, 22, 27, 32

Answer 1

you add 5 each time...

Answer 2

well i got that, ha, but i have to write an equation for n.

Answer 3

the difference of 2 terms is 5, so add 5 to get next terms

Answer 4

oh
it would be 5(n-1)+2 n being what number it is in the sequence

Answer 5

thank you so much!

Answer 6

that should like this, @Zorark
an = a1 + (n-1)d
here a1 = 2 and d = 5
so, an = a1 + (n-1)d = 2 + (n-1)5 = 2 + 5n - 5 = 5n - 3

Answer 7

but, the last answer is same :)

Answer 8

@RadEn thanks, can you please help me with my problem?

Answer 9

ha, what is it ?

Answer 10

What is the speed, in miles per hour of a point on the equator due to the rotation of earth? Assume that the earth is a sphere of radius 4000 miles, no ones answered it in an hour.. :(

Answer 11

@RadEn