The mean of four numbers is 10. Three of the numbers are 9, 11 and 7. Work out the fourth number
2 answers:
You might be interested in
<em>Note: I am assuming we have to determine the value of the side 'x'.</em>
Answer:
The value of x = 8.1 units
Step-by-step explanation:
<em>Note: I am assuming we have to determine the value of the side 'x'.</em>
Given
Angle Ф = 32°
To determine:
x = ?
Using the trigonometric ratio
tan Ф = opposite / adjacent
here
Ф = 32°
opposite to angle 32° = x
adjacent to angle 32° = 13
Therefore,
substituting adjacent = 13, Ф = 32°, opposite = x in the equation
tan Ф = opposite / adjacent
x = 8.1 units tan 32° = 0.62
Therefore, the value of x = 8.1 units