If the temperature at which a certain compound melts is a random variable with mean value 120 ???? ???? and standard deviation 2
1 answer:
You might be interested in
First of all we can draw a parallel line to divide the figure into a triangle and a rectangle as shown in the figure. To find the area of our rectangle, remember that the area of a rectangle is length times width, so 
. Since we know for our figure that the length and width of our rectangle are 13cm and 6cm respectively, lets replace those values in our formula to get its area:
Similarly, the area of a triangle is one half times base times height, so
. Since we know that our base is 8cm and our height 6cm, lets replace those values in our equation to find the area of our triangle:
Now the only thing left is add our areas:
We can conclude that the correct answer is <span>A. 102</span>
Similarly, the area of a triangle is one half times base times height, so
Now the only thing left is add our areas:
We can conclude that the correct answer is <span>A. 102</span>