Kyle is finding the area of this figure using a rectangle and a triangle. what is the area of the figure?

a) 315 cm2
b) 405 cm2
c) 90 cm2
d) 325 cm2

B

Step-by-step explanation:

15*21=315

12*15=180

180/2=90

315+90=405

x intercept = (-1,0)   (4,0)

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.