Perform the addition or subtraction.(3x5 + 6x4) + (6x5 + 2x4)
A. 17x9
B. 17x18
C. 9x5 + 8x4
D. 9x10 + 8x8
Answer: C
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Perform the indicated operation.
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__________two?
Fill in the blank(s) with the appropriate word(s).
What is element 
of the inverse of the following matrix?
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A. 
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B. 
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C. - 
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D. - 
?
E. 
?
Solve the problem.If the resistance in an electrical circuit is held constant, the amount of current flowing through the circuit is directly proportional to the amount of voltage applied to the circuit. When 
are applied to a circuit, 
(mA) of current flow through the circuit. Find the new current if the voltage is increased to 
A. 54 mA B. 200 mA C. 171 mA D. 180 mA
Solve the problem.Martin purchased some municipal bonds yielding 8% annually and some certificates of deposit yielding 11% annually. If Martin's investment amounts to $23,000 and the annual income is $2230, how much money is invested in bonds and how much is invested in certificates of deposit?
A. $10,000 in bonds; $13,000 in certificates of deposit B. $13,000 in bonds; $10,000 in certificates of deposit C. $15,000 in bonds; $8000 in certificates of deposit D. $8000 in bonds; $15,000 in certificates of deposit