Translate the problem to an equation. Do not solve.- 
of a number plus 7 equals 4.
A. - 
(x + 7) = 4
B. - 
x = 7 + 4
C. - 
x + 7 = 4
Answer: C
Mathematics
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B.
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Find the unknown side of the right triangle. Use a calculator or square root table when necessary and round to the nearest thousandth.
A. 9.165 in. B. 84 in. C. 21 in. D. 42 in.
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Ohm's Law for the current I in a circuit with voltage E, resistance R, capacitance reactance XC, and inductive reactance XLis 
Use this law to solve the problem.Find XCif I = 6 - 2i, E = 5 - 5i, R = 9, and 
A. - 
+ 8i
B. 
- 8i
C. - 
- 8i
D. 
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Mathematics