Solve the radical equation, and check all proposed solutions.x - 
= 4
A. {-1}
B. {1, 2}
C. {2, 9}
D. {9}
Answer: D
Mathematics
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A piece of machinery valued at $38,000 depreciates at a rate of 7% yearly. How long will it take until it has a value of $19,000? Please round the answer to the nearest tenth.
A. 11.9 years B. 14.9 years C. 12.9 years D. 9.9 years E. 8.9 years
Mathematics
List the intercepts of the graph. 
A. (0, -3), (0, 3) B. (-3, 0), (3, 0) C. (-3, 0), (0, 3) D. (0, -3), (3, 0)
Mathematics
Find the midpoint of the line segment joining the given points.
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Mathematics
Solve. Write the answer as a mixed number in simplest form.Find the area of the square.
A. A = 940
sq. yd
B. A = 188
sq. yd
C. A = 94
sq. yd
D. A = 19
sq. yd
Mathematics