The rates of on-time flights for commercial jets are continuously tracked by the u. s. department of transportation. recently, southwest air had the best reate with 80 % of its flights arriving on time. a test is conducted by randomly selecting 12 southwest flights and observing whether they arrive on time. (a) find the probability that exactly 4 flights arrive on time. (b) would it be unusual for southwest to have 9 flights arrive on time?

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)

4 candies

step-by-step explanation:

7 x 28 = 196

200 - 196 = 4 candies remaining.

[2, 2.5)

(2.5, 3]

step-by-step explanation:

i think its these two not sure [2, 2.5)

(2.5, 3]