Add or subtract. Express the answer as a mixed number.-5
- 1
A. -7
B. -6
C. -1
D. -7
Answer: D
Mathematics
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Use the decibel scale to answer the question.How does the intensity of sound form a concert speaker at a distance of 1 meter compare to the intensity at a distance of 7 meters?
A. Factor of 49 weaker at 7 m. B. Factor of 107 weaker at 7 m. C. Factor of 21 weaker at 7 m. D. Factor of 7 weaker at 7 m.
Mathematics
Write the numeral as an Ionic Greek numeral.39
A. ?? B. ?? C. ?? D. ??
Mathematics
Solve the system.
A. (2, 3), (3, 2) B. (2, -3), (3, -2) C. (-2, 3), (-3, 2) D. (-2, -3), (3, 2)
Mathematics
Solve the equation.log4(x + 1) = 4 + log4(x - 4)
A. 
B. 
C. 
D. 
Mathematics