Two pyramids like the one below sit on top of the gates at the entrance to the bridge.

Which expression shows how to determine the minimum amount of cement used to make each of the pyramids?

1.1/3(10)(10)(12)

2.1/2(10)(10)(12)

3.4[1/2(10)(13)]+10(10)

4.4[1/3(10)(13)]+10(10)

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

360/29

step-by-step explanation:

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.