Ill give ! ((if more than one person answers))

a) 300

b) 900

Step-by-step explanation:

The length of the rectangle is 5 and the width is 3...

But since the rectangles are connected together, we could just work the problem like this:

5 x 2 = 10

3 x 5 = 15

15 x 2 = 30

The surface area of the shape is 10 x 30 = 300

If the dimensions of the box were tripple, we would need to multiply the surface area by 3:

300 x 3 = 900

For the second question, the answer would be 900

Hope this helped you :-)

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

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.