Let x1; x2; x3 and x4 be independent lifetimes of memory chips. suppose that xi n(300; 102) for i = 1; 2; 3; 4 where the parameters are measured in hours. compute the prob- ability that at least two of the four chips lasts at least 310 hours.

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

answer: dead jah

step-by-step explanation:

bullet + jah= dead jah

b

step-by-step explanation:

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q