From the given f(x) and g(x), the value of (g-f)(2)=1
Given :
The functions are

Lets evaluate (g-f)(2)

To find out g(2), replace 2 for x in g(x) and then replace 2 for x in f(x)

Now we find g(2)-f(2)

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The triangles ABD, ADC and ABC are similar (AA stands for "angle, angle" and means that the triangles have two of their angles equal).
If two triangles have two of their angles equal, the triangles are similar.
Therefore the sides of triangles are in proportion.

cross multiply

Use the Pythagorean theorem for calculate x:

Baby hippo’s current born weights is 2200. Adult hippos can weight up to 5300 pounds. To find how much more the baby hippo can gain, subtract bith numbers.
W=2200-5300.
The answer would be 6. This be because 6 + -8 = -2.