Answer:

Step-by-step explanation:
If 3, 9, 10, x are in proportion. Then,


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<h3>Hope it is helpful.....</h3>
Recall that two shapes are congruent if they have the same shape and size. When two shapes have the same shape but different sizes, we call the shapes similar. You can also think of similar objects or shapes as scaled versions of each other.
Answer:
C) f(3) = 111
Step-by-step explanation:
f(x) = 3x^3 + 8x^2 – 10x – 12
Let x=3
f(3) = 3(3)^3 + 8(3)^2 – 10(3) – 12
=3*27+8(9) -30-12
=81+72-30-12
=111