Ten people at a party decide to compare ages. Five people are 30 years old, three are 32, one is 31, and one is 65. Given the ages of the ten people, to the nearest tenth, determine the average of their ages and the standard deviation. A. The mean age of the ten people at a party is B. The standard deviation is: NEXT QUESTION TURN IT IN ASK FOR HELP 3 DLL​

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.

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:

nlgqer

step-by-step

answer: 0.64

step-by-step explanation: