A pendulum is L meters long. The time, t, in seconds that it takes to swing back and forth once is given by

Suppose the pendulum takes 7.86 seconds to swing back and forth once. What is the length?​

answer: 10 meter

step-by-step explanation:

need details

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.