Answer:
5% probability neither truck is available
Step-by-step explanation:
We solve this problem building the Venn's diagram of these probabilities.
I am going to say that:
A is the probability that the first truck is available.
B is the probability that the second truck is available.
We have that:

In which a is the probability that the first truck is available and the second one is not
is the probability that both trucks are available.
By the same logic, we have that:

The probability that both trucks are available is .30.
This means that 
The probability the second truck is available is .50
This means that
. So



The probability the first truck is available is .75
This means that
. So



The probability that at least one truck is available is:

The probability that neither truck is available is:

5% probability neither truck is available
The surface area of the triangular prism is: B. 72 sq. ft
<h3>Surface Area of a Triangular Prism</h3>
- The surface area of a triangular prism is given by the formula: SA = bh + (s1+s2+s3)H
- Where, b is the base, h is the height, and s1+s2+s3 is the perimeter of the triangular base, H is the length of the prism.
Thus, given the triangular prism as shown in the diagram attached below, we have the following:
b = 4 ft
h = 3 ft
H = 5 ft
s1 + s2 + s3 = 3 + 4 + 5 = 12 ft
Surface area = 4×3 + (12)5 = 12 + 60 = 72
Therefore, the surface area of the triangular prism is: B. 72 sq. ft
Learn more about the surface area of triangular prism on:
brainly.com/question/16147227
Answer:
The answer is option 4.
Step-by-step explanation:
You have to use Indices Law,


So for this question :





