Which equation models the problem below if c represents the number of babies whose eyes are closed? there are 12 babies in a photograph, and 9 of them have their eyes open. how many babies have their eyes closed? 9 – c = 12 12 + c = 9 c – 9 = 12 9 + c = 12

Step-by-step explanation:

Given there are 12 babies in a photograph ,Out of which 9 babies have their eyes open .So by intuition one can say that the other babies have their eyes closed.Let the number of babies with their eyes closed be "c". Then

Total number of babies=12

number of babies with their eyes open=9

number of babies with their eyes closed=c

Total number of babies=  number of babies with their eyes open +  number of babies with their eyes closed.

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet