Area=width*height
area=(11.7)*(15.4)
area=180.18cm^2
Answer:


Step-by-step explanation:
The given parameters can be represented as:

Solving (a): P(x < 3)
This is calculated as:
----- i.e. all probabilities less than 3
So, we have:


Solving (b): Expected number of events
This is calculated as:

So, we have:



Express as decimal

Approximate to the nearest integer

Im assuming the base of the triangle is 4cm. The volume is

.
If the dimensions are tripled, the base is 12, the height is 24, and the length is 18. The volume is

, which is 27 times bigger.
If you are increasing each side by a factor of x, you are multiplying the original by