$138.78 is the rounded figure
Answer:
The correct equation is fog = 4x^2 + 18x + 17
Step-by-step explanation:
In order to find fog, you need to put the g(x) equation in for x in the f(x) equation. Then simplify.
f(x) = x^2 + 3x - 1
fog = (2x + 3)^2 + 3(2x + 3) - 1
fog = (4x^2 + 12x + 9) + (6x + 9) - 1
fog = 4x^2 + 18x + 17
We need two definitions.
Two shapes are congruent if you can turn one into another using translation, rotation, and reflection.
Two shapes are similar if you rescale one them into a shape that is congruent to the other.
We can conclude from this that in euclidian geometry all circles are similar.
We can shrink the first circle to get the second one.
Scale factor would be 1/3 as circle 1 has the radius that is 3 times the radius of circle 2.
