Solve the problem.On average, 
of a teenager's day is spent at school or sleeping. If
is spent sleeping, what fraction is spent in school?
A. 
of their day
B. 
of their day
C. 
of their day
D. 
of their day
Answer: D
Mathematics
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Find parametric equations for the line through the point that is parallel to the plane x+y+z=-15 and perpendicular to the line x=15+t, y=12-t, z=3t.
What will be an ideal response?
Mathematics
Solve the linear equation using the addition property of equality.15 + 8y = 9y
A. y = 15 B. y = 8 C. y = -15 D. y = -2
Mathematics
Find all square roots of the number.
A. 
, - 
B. 
, - 
C. 
, - 
D. 
, - 
Mathematics
Find dy for the given values of x and ?x.y = 
+ 3
; x = 1, ?x = 0.2
A. 0.05 B. 0.02 C. 0.15 D. 0.5
Mathematics