Add or subtract. Write the answer in lowest terms.
+ 
- 
A. 
B. 
C. 
D. 
Answer: A
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Use the decibel scale to answer the question.How does the intensity of sound from a concert speaker at a distance of 20 meters compare to the intensity at a distance of 100 meters?
A. Factor of 100 weaker at 100 m. B. Factor of 50 weaker at 100 m. C. Factor of 25 weaker at 100 m. D. Factor of 5 weaker at 100 m.
Solve the problem.A triangle drawn on a map has sides of lengths 7.0 cm, 10 cm, and 13 cm. The shortest of the corresponding real-life distances is 126 km. Find the longest of the real-life distances. Round to the nearest unit.
A. 234 km B. 180 km C. 164 km D. 68 km
Solve the absolute value equation.3
- 4 = 3
A. 
B. 
C. 
D. 
Determine if the infinite geometric series converges or diverges. If the series converges, find its sum.
A. converges, 
B. converges, ?
C. diverges
D. converges, 15