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Mathematics, 21.07.2019 08:00 coolfab9338

Let f(x) = -6x + 3 and g(x) = 5x + 4. find f*g and state its domain. -18x2 - 39x + 20; all real numbers except x = 1 -30x2 - 9x + 12; all real numbers -18x2 - 39x + 20; all real numbers -30x2 - 9x + 12; all real numbers except x = 4

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ansver
Answer from: emilyarvin
1- getting f*g:
We are given that:
f (x) = -6x + 3
g (x) = 5x + 4
To get f*g, we will simply multiply the two functions as follows:
f (x) * g (x) = (-6x+3)(5x+4)
f (x) * g (x) = -30x² - 24x + 15x + 12
f (x) *  g (x) = -30x² - 9x + 12

2- getting the domain:
The domain is all the values of x that can be used in the given equation.
In the equation calculated from part 1, we can note that all real numbers can be considered as the domain.

Hope this helps :)
ansver
Answer from: Quest
The answer is the third choice
ansver
Answer from: Quest

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90

Can someone plz answer this last ! i will give brainliest to whoever answers it

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Let f(x) = -6x + 3 and g(x) = 5x + 4. find f*g and state its domain. -18x2 - 39x + 20; all real nu...