Answer:
300 is the student strength of the school
Step-by-step explanation:
99 of total students=33%
total students=99*100/33
total student=9900/33
total student=300 students
The mean of the data is given

The variance of the data is given

(4x-5)+(2x-3)
4x+2x= 6x
-5+-3= -8
6x-8
Answer:
6
-7
Step-by-step explanation:
simplyifying this we get
1+5i-8+i
= 6i-7
I am assuming the i you are talking about here is the sqrt of negative one so that would be 6
-7
Answer:
(-3,-1)
Step-by-step explanation:
When you graph it on a graphing paper, you can see that the graph touches it but barely