Simplify.
+ 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Write the expression as a complex number in the form a + bi.4 - 
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Solve.The sum of the squares of the digits of a positive two-digit number is 85, and the tens digit is 1 less than the units digit. Find the number.
A. 65 B. 56 C. 67 D. 76
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Determine whether a linear model, a quadratic model, or neither type of model would be reasonable for modeling the data depicted by the scattergram.
A. Linear B. Quadratic C. Neither
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Find the limit as x approaches c of the average rate of change of the function from c to x.c = -3; f(x) = 2x2 + 3
A. 18 B. -12 C. Does not exist D. -9
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