Step-by-step explanation:
∑k=150(3k+2)
First find a1 and a50 :
a1=3(1)+2=5a20=3(50)+2=152
Then find the sum:
Sk=k(a1 + ak)2S50=50(5 + 152)2=3925
Answer:
top stereo bottom toaster
Step-by-step explanation: toaster flings food using gravity boom ur welcome ;)
Answer:
I'm not very sure, however I think you have to replace the sign - for a +.
Step-by-step explanation:
7 + 4√13
