Add and subtract as indicated. Simplify and leave the numerator and denominator in your answer in factored form.
+ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve.How much soil is needed to fill a rectangular hole 3 feet by 2 feet by 4 feet?
A. 24 cu ft B. 36 cu ft C. 12 cu ft D. 32 cu ft
Mathematics
Multiply.-7ax2(8ax3 + 4x2 - 5a)
A. -56a2x5 - 28ax4 B. -56a2x5 - 28ax4 + 35a2x2 C. -56ax3 - 28x2 + 35a D. -56a2x5 + 4x2 - 5a
Mathematics
Provide an appropriate response.One way to determine if two fractions are equivalent is to use 
.
A. simplification B. common factors C. equivalent terms D. the method of prime factors
Mathematics
Solve the problem.Suppose that the manufacturing cost of a precision instrument is approximated by 
where x is the cost of materials and y is the cost of labor. Find 
A. 182 B. 231 C. -4 D. 19
Mathematics