Answer:
B
Step-by-step explanation:
evry step is in the picture
I need help on number 8 please help me
1 answer:
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Let the length be 
and the width be 
. Now, write the length in terms of the width. "The length is 15 cm. less than twice the width" in the form of an equation is
Let's plug that into the equation for the perimeter now. The perimeter of a rectangle is
, so the equation for the perimeter of this rectangle is
Plugging in the length in terms of width and solving for the width, we get
To find the length, we just have to plug in the width into the equation we wrote for the length in terms of the width:
Let's plug that into the equation for the perimeter now. The perimeter of a rectangle is
Plugging in the length in terms of width and solving for the width, we get
To find the length, we just have to plug in the width into the equation we wrote for the length in terms of the width:
Answer:
1.83% probability there are no car accidents on that stretch on Monday
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given time interval.
The number of accidents on a certain section of I-40 averages 4 accidents per weekday independent across weekdays.
This means that
What is the probability there are no car accidents on that stretch on Monday?
This is P(X = 0).
1.83% probability there are no car accidents on that stretch on Monday