Question

find the 23 term in the following -21, -27, -33 -39

Answer 1

Answer:

153

Step-by-step explanation:

a= -21

d= -27-(-21)

 = -6

n=23

a₂₃ =a₁+(n-1)d

a₂₃ =-21+(23-1)-6

a₂₃ =-21+(22)×-6

a₂₃ =-21+(-132)

a₂₃ =-153

Answer 2

$\huge\boxed{\boxed{\fcolorbox{white}{pink}{Answer}}}$

$\large\mathcal\orange{-21,-27,-33,-39....}$

$a_{(First\: Term)}:\: -21$

$d_{(Common\: Difference)}:\: -6$

$n_{(Number\: of\: terms)}:\: 23$

$\large\mathcal\green{A_n: a+(n-1)d}$

$\large\mathcal\pink{Substituting\: the\: values}$

$A_{23}: -21+(23-1)-6$

$A_{23}: -21-132$

$A_{23}: (-153)$

Hope it helps úh