The frequency table shows the students' scores on a recent math test.what percentage of the students scored at least 81 on the t
2 answers:
Answer:
Step-by-step explanation:
Given is a frequency table showing the students' scores on a recent math test.
Score Frequency
41-50 1
51-60 2
61-70 8
71-80 12
81-90 20
91-100 7
We have to find the percentage of the students scored at least 81
on the test
From the frequency table we find that 20 students gained 81 to 90 and 7 students from 91 to 100
No of studence who scored atleast 80
Total frequency =
Hence percentage of the students scored at least 81
on the test=
Answer is
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Answer:
Y'=3xy-3x-12
Y'=F(-2,-1)=0
Step-by-step explanation:
The function of the equation at the point (-2,-1)
is where the equation make the function go to zero:
Y'=3xy-3x-12
Y'=F(-2,-1)=[3(-2)(-1)]-[3(-1)]-12
F(-2,-1)=[6]-[-6]-12
F(-2,-1)=6+6-12
F(-2,-1)=12-12
F(-2,-1)=0
Solving for y
3xy-3x-12=0
y=4/x+x
Making y=0
So the values make the function go to zero