Use the quadratic formula to solve the equation.x2 - 4x + 13 = 0
A. {2 + 3i}
B. {2 - 9i, 2 + 9i}
C. {2 - 3i, 2 + 3i}
D. {-1, 5}
Answer: C
You might also like to view...
Write the reference angle for the given angle.675°
A. 90° B. 45° C. 60° D. 30°
Provide the requested response.Suppose that a polynomial function of degree 5 with rational coefficients has 
as zeros. Find the other zero(s).
A. -4 + i B. -4 - i C. 4 + i D. 2, -4, 2, 4 + i
Decide whether or not the functions are inverses of each other.f(x) = 
, domain [-6, ?); g(x) = x2 + 6, domain (-?, ?)
A. Yes B. No
Solve the problem.The annual population density of a species of insect after n years is modeled by a sequence. Suppose that the initial density of insects is 628 with r = 1.5. Write a recursive sequence that describes this data, where an denotes the insect density during year n.Find the terms a1 , a2 , a3 , ...., a5 . Round to two decimal places, if necessary.
A. a1 = 628, a2 = 942.00, a3 = 1413.00, a4 = 2119.50, a5 = 3179.25 B. a1 = 628, a2 = 628, a3 = 628, a4 = 628, a5 = 628 C. a1 = 942.00, a2 = 1413.00, a3 = 2119.50, a4 = 3179.25, a5 = 4768.88 D. a1 = 628, a2 = 314.00, a3 = 157.00, a4 = 78.50, a5 = 39.25