find the number of molecules are there in 15 decimeter cube of no2 gas please answer ASAP due in 10min please show working and i will make brainliest go r the first and correct person. Mind you no linkif you don't know it don't answer. THANK YOU​

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

7 9/10 as an improper fractions is 79/10.

hope it : )