Solve the problem.Which of the following vectors is parallel to v = -10i - 8j?
A. w = 20i + 16j
B. w = 3i - 5j
C. w = -20i + 25j
D. w = 4i + 4j
Answer: A
Mathematics
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Find the number of subsets of the set.{x | x is a day of the week}
A. 128 B. 256 C. 127 D. 124
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Solve.x5 + 48 > 6x3 + 8x2
A. (-
, 
)
B. (-
, 2) ? (
, ?)
C. (-?, -
) ? (2, 
)
D. (-6, ?)
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Find a true inequality that involves the real number 
.
A. 
B. 
C. 
D. 
E. 
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The solution of the system of differential equations
?
is
Select the correct answer.
?
A. 
,
B. 
,
C. 
,
D. 
,
E. 
,
Mathematics