Answer:
Step-by-step explanation:
2X + 1 + 3X - 2 + 4X - 5 = 180
9X - 6 = 180
9X = 174
9 = 174
ـــــــــــــــــــــ
9 9
X = 19.333
<em>So</em><em> </em><em>the</em><em> </em><em>right</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>of</em><em> </em><em>option</em><em> </em><em>B</em><em>.</em><em>.</em>
This would be a lot easier with the figure.
Four equal spaces means quarters.
A is 1 mark to the left of 0, so 1/4 to the left of 0. That's -1/4
Answer: Negative one-fourth
Answer: Crashes due to pilot error is the most serious threat to aviation safety as it has highest relative frequency.
Step-by-step explanation:
Since we have given that
Number of crashes due to pilot error = 699
Number of crashes due to other human error = 88
Number of crashes due to mechanical problems = 156
Number of crashes due to sabotage = 164
Total number of crashes = 699+88+156+164 = 1167
So, Relative frequency distribution :
Pilot error = 
Human error = 
Mechanical problems = 
Sabtoge = 
Crashes due to pilot error is the most serious threat to aviation safety as it has highest relative frequency.