Find the sum of ∑3k=1(k2−3).
A. 2
B.11
C. 3
D. 5

The answer is 5.

Step-by-step explanation:

a1= 1^2-3= -2

a2= 2^2-3=1

a3=3^2-3=6

-2+1+6= 7 - 2 which is 5.

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !

it would be 3 ÷by 6 because the number on each side