Simplify the expression, writing the answer as a single term without negative exponents.a-2 - b-2
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve.A 15-foot fence on the property line would cast a 30-foot shadow on the shortest day of the year, and the north side of the apartment building is set back 80 feet from the property line. Find the maximum allowed height of the apartment building.
A. 51.33 ft B. 47.67 ft C. 40 ft D. 55 ft
Mathematics
Find the product. Write the answer in standard form.(3 - 7i)(2 - 5i)
A. 35i2 - 29i + 6 B. -29 + 29i C. 41 + 1i D. -29 - 29i
Mathematics
Solve the problem. Express your answer as an integer or simplified fraction.
- 4 = 
- 3
A. - 14 B. - 6 C. 14 D. - 2
Mathematics
Find the quotient and simplify, if possible.
A. 28xy
B. 2x4y2
C. 4x2y
D. 2x2y
Mathematics