$\bf n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ d=\textit{common difference}\\ \hrulefill\\[0.5em] a_3=8\\ n=3\\ d=5 \end{cases} \\\\\\ a_3=a_1+(3-1)5\implies 8=a_1+(2)5 \\\\\\ 8=a_1+10\implies -2=a_1 \\\\\\ \begin{cases} a_1=-2\\ d=5 \end{cases}\implies a_n=-2+(n-1)d$

5 0

3 years ago

Please help me with this

Nata [24]

Answer: 5

Step-by-step explanation:

4 0

2 years ago

Please help me ill mark you as brainiset

Artyom0805 [142]

Answer: -$560

Step-by-step explanation: Ahem, So basically u divide -$5040 by 9 months and then you get -$560

Plz mark me brainliest it would mean so much! :)

8 0

2 years ago

$4,700 is invested in an account earning 6.2% interest (APR), compounded

pickupchik [31]

Answer:

(5 x (-20)) * (100 x (0.7))

4 0

1 year ago