Julian needs to spend at least seven hours each week practicing the drums. He has already practiced five and one third hours thi
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Answer:
68% of these phones last 3.87 years.
Step-by-step explanation:
Exponential distribution:
The exponential probability distribution, with mean m, is described by the following equation:
In which is the decay parameter.
The probability that x is lower or equal to a is given by:
Which has the following solution:
The probability of finding a value higher than x is:
The average lifetime of a certain new cell phone is 3.4 years.
This means that
So
68% of these phones last how long (in years)?
This is x for which:
Then
68% of these phones last 3.87 years.
Answer:
Step-by-step explanation:
8 1/2 inches = inches
To fit on shelves, the package must not be more than 8 1/2 inches tall, it means the height of the package can be at inches
The box must be able to hold 100 cubic units of crackers. it means the volume of the box is 100 cubic units.
The base of the package to be squared
And we have the formula:
V = h*S (Area of the base)
=> S = V/h = 100 : =
=> the side of square:
The dimensions for Jason's design are:
The height: inches
The length and width: