The following table shows the height of a plant at different ages. 3
7.
10
Age (in weeks)
Height (in centimeters)
12 35
60
Is the height of the plant proportional to its age?
Choose 1
А
Yes
B
No
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One root of a third degree polynomial function f(x) is -5 + 2i

The statement that describes the number and nature of all roots for this function is:
f(x) has two complex roots and one real root. 

Two complex roots because whenever a complex number is a root of a polynomial with real coefficients, its complex conjugate is also a root of that polynomial. They come in pairs.