2 years ago

Which expression is equivalent to 1.5a + 2.4 (a + 0.5b) - 0.2b?

Mathematics

2 answers:

Oksana_A [137]2 years ago

8 0

The answer is A, 3.9a + b

Step-by-step explanation:

youre welcome

labwork [276]2 years ago

3 0

A) 3.9a+b hope this helps

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Perform the indicated operation g(x)=-x-3 h(x) = x 2+X Find (goh) (x)

Klio2033 [76]

Answer:

$(g\circ h)(x)=-x^2-x-3$

Step-by-step explanation:

So we have the two functions:

$g(x)=-x-3\text{ and } h(x)=x^2+x$

And we want to find:

$(g\circ h)(x)$

This is the same thing as:

$=g(h(x))$

So, substitute h(x) into g(x):

$g(x)=-x-3\\g(h(x))=-(x^2+x)-3$

Distribute the negative:

$g(h(x))=-x^2-x-3$

And we're done!

So:

$(g\circ h)(x)=-x^2-x-3$

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