Suppose the number of years that a computer lasts has density 8x−3 if x ≥ 2 a) find the probability that the computer lasts between 3 and 5 years. b) find the probability that the computer lasts at least 4 years. c) find the probability that the computer lasts less than 1 year. d) find the probability that the computer lasts exactly 2.48 years. e) find the expected value of the number of years that the computer lasts.

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

2160ft3

step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft

x = 12

y = 1

for the points!