Answer:
(12^2)+(4^2)=160
=Large side of a rectangle
(2^2)+(6^2)=40
=small side of a rectangle
area
Step-by-step explanation: 12*4=48/2=24Large triangle area
2*6=12/2=6 small triangle area
Two large triangles=2*24=48
two small triangle=2*6=12
48+12=60
Largerectangle area=14*10=140
140-60=80
For this case we have the following equation:
Let 
We have:
By definition, given an equation of the form 
The quadratic formula, to find the solution can be written as:
In this case we have:
Substituting in the quadratic formula we have:
See attached image
Answer:
Option B
Answer:
Step-by-step explanation:
1)
x = -45
2)
Answer:
The average speed would be 10.1 kilometers per hour.
Step-by-step explanation:
If we convert both times into minutes, it will make solving this much easier. After finding the speed for both legs, we can find the average by adding the two values together and dividing by 2. This results in 10.11430568 or can be rounded to 10.1.
Since
is 2 standard deviations above the mean, you're looking for the probability that
The empirical rule says that approximately 95% of a normal distribution lies within 2 standard deviations of the mean, or
.
Since the normal distribution is symmetric, you have
