Perform the matrix operation.Given B = 
, find (-3)B.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve the system by the best method. Use set notation to express the solution set.
A. {(-4, 7)} B. no solution; ? C. {(-5, 7)} D. {(-4, 6)}
Mathematics
Provide an appropriate response.For 
, x, 
to be a geometric sequence, x must be:
A. 
B. 
C. 
D. 
Mathematics
Rewrite each sum using the commutative property of addition.23 + 7 =
A. 
+ 
B. 23 + 
C. 7 + 23
D. 7 + 
Mathematics
Solve the problem.Assume that the annual sales of a small manufacturer can be modeled by a linear function and that sales were $11,500 in 1982 and $80,000 in 1987. Let x = 0 represent 1982 and f(x) represent annual sales, and write a formula for f(x).
A. f(x) = 68,500x + 11,500 B. f(x) = 13,700x + 80,000 C. f(x) = 13,700x + 11,500 D. f(x) = 68,500x + 80,000
Mathematics