In paragraph 2, the details about Dave’s attempts to gain body mass suggest that he A wants to get quick results without making an effort B is disciplined and determined to reach his goal C is strong and healthy but not very athletic D cares about his health as much as his image

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

step-by-step explanation:

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true

4.28095238095 that is the answer