Three roots of a fifth a degree polynomial function f(x) are -2, 2, and 4 + l. Which statement describes the number and nature of all roots for this function?
Of(x) has two real roots and one imaginary root.
O f(x) has three real roots.
O f(x) has five real roots.
O f(x) has three real roots and two imaginary roots.

Arectangle with an area of 47 m² is dilated by a factor of 7. what is the area of the dilated rectangle? enter your answer in the box. do not leave your answer as a fraction.

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.