Without solving, determine the character of the solutions of the equation in the complex number system.x2 - 12x + 36 = 0
A. a repeated real solution
B. two complex solutions that are conjugates of each other
C. two unequal real solutions
Answer: A
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Solve the problem.A certain radioactive isotope decays at a rate of 2% per 100 years. If t represents time in years and y represents the amount of the isotope left then the equation for the situation is 
In how many years will there be 85% of the isotope left?
A. 1,500 yr B. 813 yr C. 234 yr D. 750 yr
Simplify.
-2
A. 16x6
B. 
C. 
D. 
Solve the problem. When needed, use 365 days per year and 30 days per month.An initial investment of $1000 is appreciated for 6 years in an account that earns 9% interest, compounded semiannually. Find the amount of money in the account at the end of the period.
A. $695.88 B. $1695.88 C. $1677.10 D. $1622.85
Solve the equation. Give an exact solution.ln(5x - 2) = ln 12 - ln(x - 6)
A. no solution
B. 
C. 0, 
D. 6, 