Solve the problem.If A is a 3 × 3 matrix and A + B = is the 
zero matrix, what can you say about the matrix?
A. B is the 3 × 3 zero matrix
B. B is the 3 × 3 identity matrix
C. B = A
D. B = -A
Answer: D
Mathematics
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Solve the equation. Round to the nearest tenth, if necessary.If an object is dropped, the distance it falls is given by d = 
gt2, where g is about 32 ft/sec2. How long would it take an object to fall 64 feet?
A. 1 sec B. 4 sec C. 2 sec D. 0.5 sec
Mathematics
Solve the problem.Sue had $729 in her bank account. She deposited a $520 paycheck and a $493 paycheck. How much did she deposit and what was her new balance?
A. $1013; $1732 B. $1222; $1642 C. $1013; $1742 D. $1249; $1742
Mathematics
Translate to an algebraic expression.73% of the price
A. 0.73 + x
B. 0.73x
C. 0.73 - x
D. 
Mathematics
Graph the inequality.x < 0
A. 
B. 
C. 
D. 
Mathematics