URGENT PLEASE HELP If you answer this correctly ill answer some of your questions you have posted! (33pts)

Step-by-step explanation:

Area formula:

Find h (not drawn, it would be segment AD, where AD⊥CB):

Find area:

area of triangle =1/2×sin42×AC×BC

=1/2×sin42×4×7=18.74/2=9.36in²

Step-by-step explanation:

is area.

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.