Answer:
are 10 hours
Step-by-step explanation:
The reason its 10 hours is because on the lower right of the document it says 10.
From largest to smallest:
3 hundreds (300) , 6 tens (60) , 8 ones (8)
hope this helped :)
(5 + 2) + 1 = 5 + (2 + 1)
0.442
Step-by-step explanation:
Step 1 :
Given that 11% of the lights are defective.
So probability of a light randomly chosen is defective is .11
This implies probability of a light randomly chosen is not defective is 1 - .11 = .89
Step 2 :
In a pack of 5 light bulbs the probability that none of them are defective is (0.89)^ 5
Hence the probability that at least one of the light bulbs is defective is
1-(0.89)^ 5 = 1 - 0.558 = 0.442
