Use a calculator to find the sum.Round to four decimal places. $$\sum _ { k = 4 } ^ { 12 } \frac { - 1 } { k + 2 }$$
A)-0.9682
B)-2.2516
C)-0.0714
D)-0.8968
E)-1.7516

Question

Quizplus · Accepted Answer

The sum can be calculated by adding the values of the function from k=4 to k=12. Each term is $\frac{-1}{k+2}$, so we calculate each term and add them together, then round to four decimal places. The correct sum, when calculated and rounded, is -0.9682.

Use a Calculator to Find the Sum ∑k=412−1k+2\sum _ { k = 4 } ^ { 12 } \frac { - 1 } { k + 2 }k=4∑12​k+2−1​

Use a Calculator to Find the Sum $\sum _ { k = 4 } ^ { 12 } \frac { - 1 } { k + 2 }$