First find f+g, f-g, f-g and f\g. Then determine the domain for each function f(x)=3×+7,g(×)=×+9 (f+g)(×)=

1 answer:

8 0

I'll do f+g, you try the others on your own and comment if you need help with them! For f+g, you're just going to add the two functions together:
$f(x)=3x+7$
$g(x)=x+9$
$(f+g)(x)=(3x+7)+(x+9)=4x+16$

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Step-by-step explanation:

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9. YOU BE THE TEACHER Your friend

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Yes, it's reasonable.

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The percentage of students who scored below 620 is 93.32%.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

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