(3a) some boats were traveling up and down a river. a satellite recorded the movements of several boats. a motor boat traveled -3.4 miles per hour for 0.75 hours. how far did it go?
(3b) some boats were traveling up and down a river. a satellite recorded the movements of several boats. a tugboat traveled -1.5 miles in 0.3 hours. what was its velocity?

answer: 16

step-by-step explanation: first you would add 6+6 which equals 12 then add 2+2 which equals 4. then add 12 + 4 which is 16.

hope this ^_^

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

answer is 17