Answer:
13. i may be wrong im not sure
The factor of the given equation 
will be 
<h3>What will be the factor of the given equation?</h3>
Given equation is
Now taking 2 commons from the equation
now splitting the equation we get
Thus the factor of the given equation will be
To know more about Factors of quadratic equation follow
brainly.com/question/1214333
it´s a polygon. letter c (decagon) should be right
hope it helps :)
Answer:
Step-by-step explanation:
Let x be the random variable representing the times a fire department takes to arrive at the scene of an emergency. Since the population mean and population standard deviation are known, we would apply the formula,
z = (x - µ)/σ
Where
x = sample mean
µ = population mean
σ = standard deviation
From the information given,
µ = 6 minutes
σ = 1 minute
the probability that fire department arrives at the scene in case of an emergency between 4 minutes and 8 minutes is expressed as
P(4 ≤ x ≤ 8)
For x = 4,
z = (4 - 6)/1 = - 2
Looking at the normal distribution table, the probability corresponding to the z score is 0.023
For x = 8
z = (8 - 6)/1 = 2
Looking at the normal distribution table, the probability corresponding to the z score is 0.98
Therefore,
P(4 ≤ x ≤ 8) = 0.98 - 0.23 = 0.75
The percent of emergencies that the fire department arrive at the scene in between 4 minutes and 8 minutes is
0.75 × 100 = 75%
3 < x < 13
This is because the sum of two sides must be greater than the length of the third side.
