(1 point) during early development, the limb of a fetus increases in size, but has a constant proportion. suppose that the limb is roughly a circular cylinder with radius r and length l in proportion l/r=c where c is a positive constant. it is noted that during the initial phase of growth, the radius increases at an approximately constant rate, i. e. that dr/dt=a. at what rate does the mass of the limb change during this time? [note: assume that the density of the limb is 1 gm/cm3 and recall that the volume of a cylinder is v=al where a is the base area (in this case of a circle) and l is length.]dm/dt=

1.0

step-by-step explanation:

a

step-by-step explanation:

step-by-step explanation:

unless you made a typo, the answers are both a and c.

step-by-step explanation:

1.5/3 is .5 whereas 3/9 is .3333333 not proportional

22/33 is .66666 and 4/6 is also .66666 proportional

2/4 is .5 whereas 142/213 is .66666 not proportional

14/7 is 2 and 7/3.5 is also 2 proportional

you could've also checked it by doing this simple division:

if the larger fraction divides with the smaller fraction to equal 1, it is proportional. so let me show you what i mean:

when i divide 22/33 by 4/6 i get 1, so we know it is proportional, and it is the same with 14/7 and 7/3.5. now if i divide 3/9 by 1.5/3 i get .66666 so therefore we know it is not proportional.

there are many ways to do this so i wanted to show you some possible ways.