Add or subtract as indicated. Write the answer in simplest form.- 
+ 
A. 
B. - 
C. 
D. 
Answer: A
Mathematics
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Find the area of the shaded region.
y = -x4
A. 
B. 
C. 2
D. 
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Find the vertex of the parabola.y = x2 - 3
A. (3, 0) B. (0, -3) C. (-3, 0) D. (0, 3)
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Write an algebraic equation and use it to solve the problem.A chemist needs 130 milliliters of a 32% solution but has only 23% and 62% solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
A. 110 ml of 23%; 20 ml of 62% B. 100 ml of 23%; 30 ml of 62% C. 20 ml of 23%; 110 ml of 62% D. 30 ml of 23%; 100 ml of 62%
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The Wronskian of the vector functions 
, 
and 
is
Select the correct answer.
?
A. 
B. 
C. 
D. 
E. 
Mathematics