Solve the problem.Suppose that $5000 is invested at an interest rate of 5.7% per year, compounded continuously. What is the doubling time?
A. 12.2 years
B. 13.2 years
C. 2 years
D. 11.2 years
Answer: A
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For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 4(x2 + 4)(x - 6)2
A. 6, multiplicity 2, touches x-axis B. 6, multiplicity 2, crosses x-axis C. -4, multiplicity 1, touches x-axis; 6, multiplicity 2, crosses x-axis D. -4, multiplicity 1, crosses x-axis; 6, multiplicity 2, touches x-axis
Factor the trinomial completely. If the polynomial cannot be factored, write "prime."a3b2 + 7a2b + 10a
A. a3(b + 2)(b + 5) B. a(a2b2 + 7ab + 10) C. a(ab - 2)(ab - 5) D. a(ab + 2)(ab + 5)
Decide whether or not the ordered pair is a solution to the equation.2x - 2y = 10; (2, 3)
A. No B. Yes
Solve the system of equations by the elimination method. Check your solutions. For any dependent equations, write your answer in the ordered pair form.
A. {(1, 1)}
B. ?
C. 
D. {(-3, -9)}