What number must i add to complete the square? x^2+14x=-5

In the diagram below what is the approximate length of the minor arc ab

Correct answer brainliest asap an d 99 pointsss what are relative frequencies to the nearest hundredth of the columns of two way table column a 102, 18 colunm b 34, 14 answers choices 0.15 0.25 0.29 0.44 0.56 0.71 0.75 0.85

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?