Perform the indicated operation and simplify.
- 
A. 
B. 
C. 
D. 
Answer: D
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Simplify.
A. 
B. 
C. 
D. 
The length of one leg of a right triangle is 7" more than the length of the shorter leg. If the hypotenuse is 7" more than the longer leg, find the area of the triangle.
What will be an ideal response?
Solve the inequality.x3 - 6x2 - 7x > 0
A. (-1, ?) B. (-7, 0) or (1, ?) C. (-1, 0) or (7, ?) D. (-?,-1) or (0, 7)
Solve the problem.Let H be the set of all points in the xy-plane having at least one nonzero coordinate: 
. Determine whether H is a vector space. If it is not a vector space, determine which of the following properties it fails to satisfy:A: Contains zero vectorB: Closed under vector additionC: Closed under multiplication by scalars
A. H is not a vector space; does not contain zero vector B. H is not a vector space; not closed under vector addition C. H is not a vector space; does not contain zero vector and not closed under multiplication by scalars D. H is not a vector space; fails to satisfy all three properties