Solve the equation and express the solution in exact form.ln(-x) + ln 4 = ln(3x - 9)
A. 
B. 
C. ?
D. 
Answer: C
Mathematics
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Write the expression in the standard form a + bi.i6 + i4 + i2 + 1
A. 0 B. -1 C. i D. 1
Mathematics
The total revenue function (in dollars) for a blender is 
, where x is the number of units sold. What is the average rate of change in revenue R(x) as x increases from 20 to 30 units?
?
A. $254.60 per unit B. $59.80 per unit C. $48.20 per unit D. $49.80 per unit E. $49.00 per unit
Mathematics
Use the square root property to find all real or imaginary solutions to the equation.(6s + 7)2 = 36
A. 
B. 
C. 
D. 
Mathematics
Simplify by first converting to rational exponents. Assume all variables represent positive real numbers. Give the answer in radical form.
A. 81
B. 9
C. 243
D. 
Mathematics