Answer: 0.0497870 ; 0.87754
Step-by-step explanation:
Given that :
λ = 0.0003
Defining a continuous distribution function :
F(x) = 1 - e^-λx = 1 - e^-0.0003x ; x ≥ 0
a. What proportion of the fans will last at least 10,000 hours?
P(x ≥ 10000) = e^-0.0003(10000) = 0.0497870
b. What proportion of the fans will last at most 7000 hours?
P(x ≥ 7000) = 1 - p(x ≤ 7000) = 1 - e^-0.0003(7000)
1 - 0.12245642825 = 0.87754
Answer:
379.65
Step-by-step explanation:
Multiply first (2 times 2)=4
Then add 4 to 375.65
Hope this helped
:)
Answer:
48.80
Step-by-step explanation:
if that doesnt work round it and it should be right
Hello!
ANSWER:
The boxes weigh 112.5 lb altogether.
EXPLANATION:
Each box weighs 7.5 lb. We want to find out how much 15 boxes would weigh.
Multiply the weight of each box (7.5 lb) by the amount of boxes (15):
7.5 × 15 = 112.5
Well to isolate the variable you should subtract 6 from both sides resulting in -4y > 16
Now just divide by -4, however, keep in mind that when you divide or multiply by a negative number when there is a sign, always switch the sign, so just divide by -4 and get y < 4
