The life expectancy of a typical lightbulb is normally distributed with a mean of 2,100 hours and a standard deviation of 40 hou
rs. What is the probability that a lightbulb will last between 1,965 and 2,165 hours?
1 answer:
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The painting could be 5ft high and 12ft long, or it could be 4ft high and 15ft long, or it could also be 6ft high and 10 ft long
5(x+4)+16
5x+20+16
And then the solution is 5x+36
Answer:
7,700
Step-by-step explanation:
350 x 22= 7,700
If you divide 21/49 by 7 you get 3/7
18 ÷ (2/3) = 18 × (3/2) = 18×3/2 = 9×3 = 27
The answer is 27
