Answer:
1404.81
Step-by-step explanation:
1277.1 +127.71 = i read it wrong the first time sorry
Answer:
n(n+1)(n+5)/3
Step-by-step explanation:
there is no value, as we don't know n.
but we can create a summary formula/ function definition :
this is the sum for k = 1 to n of k×(k+3)
k×(k+3) = k² + 3k
so, the overall sum splits into the sum of k² for k=1 to n, and the sum of 3k for k=1 to n.
and the sum of 3k is 3 times the sum of k for k=1 to n.
Σk² for k=1 to n = [n(n+1)(2n+1)]/6
Σk for k=1 to n = n(n+1)/2
3×Σk for k=1 to n = 3×n(n+1)/2
so, we have a function formula
n(n+1)(2n+1)/6 + 3n(n+1)/2 = n(n+1)(2n+1)/6 + 9n(n+1)/6 =
= n(n+1)(2n+1+9)/6 = n(n+1)(2n+10)/6 = n(n+1)(n+5)/3
Answer: -2 + 5x - 15 = 0
Step-by-step explanation: you have to subtract 5x and 2v so i had to switch them around for a proper answer then subtract 15 from -2v and 5x and you get 0
Step-by-step explanation:
4(8x + 3y)
= 4 × 8x + 4 × 3y. [Gets multiplied with 4]
= <u>32x + 12y (Ans)</u>
Answer:
Um theres no question or picture. Or document.
Step-by-step explanation: