The duration of audio content on audio CDs is found to follow a normal distribution, with a mean of 82.1 minutes and a standard deviation of 6.5 minutes.
If the company distributes 5.5 million CDs in one year, what is the approximate number of CDs that have content lasting less than
70 minutes?

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.

l.ln.lln.k.nkl

step-by-step explanation:

linear pair postulates

he can buy 4lbs. of live bait and 1lbs of natural bait

step-by-step explanation: