State the domain of the given function.y = 
A. All real numbers x > - 7
B. 7
C. All real numbers except 7
D. All real numbers
Answer: C
Mathematics
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Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.(5x4y7)-2
A. 25x8y14
B. 
C. 
D. 
Mathematics
Find the inverse of the matrix, if possible.
A. 
B. 
C. 
D. 
Mathematics
Solve.If the voltage, V, in an electric circuit is held constant, the current, I, is inversely proportional to the resistance, R. If the current is 280 milliamperes when the resistance is 3 ohms, find the current when the resistance is 12 ohms.
A. 1116 milliamperes B. 70 milliamperes C. 210 milliamperes D. 1120 milliamperes
Mathematics
Find the unknown length in the right triangle. If necessary, round to the nearest tenth.
A. 6.5 m B. 6.2 m C. 39 m D. 19.5 m
Mathematics