3x-5y=-2 ----(1)
4x-7y=-3 -----(2)
(2)- (1) yields,
(4x-7y) -(3x-5y) =-3--2
x-2y=-1-----(3)
multiply equation 3 by 4 yields,
4x-8y=-4 ----(4)
equation (4)-(2) yields,
4x-8y-4x+7y=-1
y=1
from equation (3),
x=1+2y=1+2(1)=3
1/4 of a slice since the pizza is 5/4 and only 5 people need a slice
3 is touch down 6 is cross country 10 is merry-go-round that’s all I know
If the points are on the same line they are co linear. when working with coordinates if the all have the same y as in (x,y) they are on the same line for example, (4,5) (2,5) (9,6) are collinear
Step-by-step explanation:
a
the study is experimental as we do not just observe students performance. 2 techniques were also randomly assigned. there is control over teaching techniques and performance is also observed.
b.
these are the 3 factors: high school, instructions type, scores.
high school has 2 levels. level 1, is 3 high school. level 2: each high school has 4 sections and these 4 have 24 students.
instructions type: 1 level divided into standard and computer based.
scores: 0 ( no level)
c.
high school has between subject combination since there are 3 schools and 4 sections.
instructions type has between too. since there are two different types.
we have 24 students in each section which are within subjects.
d.
score on test is dependent variable
e.
student is basic experimental unit.
