An automotive repair shop has determined that the average service time on an automobile is 120 minutes with a standard deviation of 32 minutes. a random sample of services is selected. a. what is the probability that the sample of 64 services will have a mean service time greater than 114 minutes? b. what is the probability that a sample of 256 services will have a mean service time greater than 114 minutes? c. why are the answers to parts a. and b. different?

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

false

step-by-step explanation:

false : it can not go to 9 the highest that part can go is 7

here is your proof

its totaly b

your welcome btw