Verified answer

sol'n:

aN = a1 + (n-1)d

where:

aN = nth term

a1 = 1st term

n = no. of terms

d = common difference = 62-48 =48-34 = 34-20 = 14

a10 = -64 + (10-1)(14)

a10 = 64

answer = 64

On second question.. i think it's neither arithmetic nor geometric, because they don't have a common differece and common ratio..

It's 64.

Arithmetic.

well it goes up by 14 each time so -6+14 and so on until the 10th is 64 i believe, and im guessing its arithmetic :)

here,

a=-62

d=-48-(-62)=14

n=10

we have, tn=a+(n-1)d

=-62+(10-1)14

= 9*14-62

=126-62

=64 Ans.

hi,

we should use the formula instead of doing it old school,

a+(n-1)d

-62 + (9)(14)

= 64

c)

third choice but did you really need this being answered it shows a lack of understanding - learn this stuff!