EMERGENCY! PLEASE HELP! Write the ratio using ":".

*If the scale factor is a:b, then the ratio of areas is a^2:b^2, and the ratio of volumes is a^3:b^3.

Prism C : Prism D
scale factor:
ratio of areas: 16:49
ratio of volumes:

Cylinder X : Cylinder Y
scale factor: 3:5
ratio of areas:
ratio of volumes:

Cone M : Cone N. scale factor:
ratio of areas:
ratio of volumes: 1:8

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.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

well what did you do it matters what you did : )

step-by-step explanation: