Answer:
it is up
Step-by-step explanation:
the table below:
Grade In favor Opposed Undecided Total
Grade 9 6 4 8 18
Grade 10 10 11 9 30
Grade 11 12 15 11 38
Grade 12 15 6 14 35
If the principal randomly selects a student in grade 10 from this survey,
the probability that the student is opposed to extending the school day
P ( student in grade 10 is opposed)= Number of student in opposed(grade10) / total number of students in grade 10
Number of student opposed who is in grade10 = 11
total number of students in grade 10 = 30
P( student in grade 10 is opposed)=
= 0.37
the probability that the student is opposed to extending the school day= 0.37
Answer:
The answer is x = -7.7 ans x = -1.3
Step-by-step explanation:
Here is the work I did. I used the quadratic formula. Sorry about my bad handwriting.