Find the conjugate of the number.
A. i
B. -
C. 5i
D. 
Answer: D
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Perform the indicated operations on a calculator. Express the result with the proper accuracy and precision. Assume that all numbers are approximate.
+ 
A. -1.00 B. -1.0000 C. -1 D. -1.000
Simplify the expression. Write the result without using negative exponents. (Assume all variables represent nonzero real numbers.)(3m2n-3)2
A. 9m4n6
B. 3m4n6
C. 
D. 
Solve the problem.The table below gives the violent crime rate (per 100,000 people) for a particular state every five years from 1970 to 2010. 
Use technology to find the cubic function that is the best fit for this data, where x is the number of years after 1970. Round to five decimal places.
A. y = -0.00024x3 + 0.02250x2 - 0.03111x + 4.68687 B. y = -0.00034x3 + 0.01950x2 - 0.04893x + 4.79798 C. y = -0.00053x3 + 0.02460x2 - 0.01893x + 5.79798 D. y = 4.79798x3 - 0.04893x2 + 0.01950x - 0.00034
Simplify the complex fraction.
A. 
B. 3
C. 
D. 