This was the answer I came up with - 3.5
Answer:
The required probability is 0.3717.
Step-by-step explanation:
Consider the provided information.
There are approximately 100 species of venomous snakes, but only about 12 have a deadly bite.
zoo randomly selects one snake from each of five different species to show visitors.
The total number of ways to select 5 different species out of 100 are:

We need to find the probability that exactly one of the five snakes shown is deadly.
That means out of 12 deadly bite we need to select only 1.
Thus, the number of ways are:

Hence, the required probability is:

The required probability is 0.3717.
Answer:
x=6
Step-by-step explanation:
42/7=6
6*7=42
42/6=7
So, works in all ways.
Hope this helps!
Answer:
a) ∠ABC = 54°
a) ∠ABC = 43°
Step-by-step explanation:
<u>Trigonometric ratios</u>

where:
is the angle- O is the side opposite the angle
- A is the side adjacent the angle
- H is the hypotenuse (the side opposite the right angle)
<u>Part (a)</u>
Use the cos trig ratio to find an expression for the measure of BD:


Use the cos trig ratio and the found length of BD to find angle ABD:



Therefore:



<u>Part (b)</u>
Use the tan trig ratio to find angle CAD:



Therefore:


∠ABC = ∠ABD
Interior angles of a triangle sum to 180°


