(problem from an old actuarial exam) an actuary models the lifetime of a device using the random variable y = 10x0: 8, where x is an exponential random variable with mean 1 year. determine the probability density function f(y), for y > 0, of the random variable y . (it might be to derive the c. d.f. of y and then take a derivative to nd the density.)

Points d and e are midpoints of the sides of triangle abc. the perimeter of the triangle is 48 units. what is the value of t? ο ο ο ο 7t +

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?