Two forces act on an object with an angle of 20 degrees between them. If the smaller of the two forces is 400 lb and the larger is 500 lb, what is the magnitude
of the resultant force?
Round to the nearest tenth, do not write units.

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.