300,000 + 25,000 + 800 + 9
Answer:
Choice C is correct
Step-by-step explanation:
We use the law of exponents in this problem;
Therefore,
Since the base is the same, that is 9, we simply add the exponents 1/2;
one-half plus one-half is equal to unity and any number raised to one is simply equal to the given number;
The difference of course is the symbol between the f and g letters.
The circle notation means we're doing a function composition.
Writing is the same as saying where g is the inner function.
Here's an example
f(x) = x^2
g(x) = 3x
f( g(x) ) = ( g(x) )^2 ... note how x is replaced with g(x)
f( g(x) ) = ( 3x )^2
f( g(x) ) = 9x^2
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On the other hand, the dot notation means we multiply the f(x) and g(x) functions.
Going back to the previous example, we could say
|x-3|+5
With absolute value you're going to always use these | |
If you wish to go to right you will subtract x, if you wish to go to the left you will add to x.
And the +5 will do as it says and go up 5 or -5 go down by 5.