Solve by the quadratic formula. Simplify answers. Use i notation for nonreal complex numbers.6x2 + 10x + 2 = 0
A. x = 
B. x = 
C. x = 
D. x = 
Answer: D
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Solve the problem.Find the amount of time required for a $27,000 investment to double if the annual interest rate r is 2.5% and interest is compounded continuously. Round your answer to the nearest hundredth of a year.
A. 408.14 years B. 4.08 years C. 435.87 years D. 27.73 years
Calculate. Write answer in lowest terms.13
- 9
A. 22
B. 3
C. 3
D. 21
Determine whether the given equation is linear or nonlinear.7n + 7 = 2n2 + 2(n - 11)
A. nonlinear B. linear
Determine whether the relation represents a function. If it is a function, state the domain and range.{(-2, 2), (-1, -1), (0, -2), (1, -1), (3, 7)}
A. function domain: {2, -1, -2, 7} range: {-2, -1, 0, 1, 3} B. function domain: {-2, -1, 0, 1, 3} range: {2, -1, -2, 7} C. not a function