HELP ASAP WILL MARK AS BRAINLIST

80

Step-by-step explanation:

An arc's measurement is always twice the amount of its angle.

40 x 2 = 80

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s