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g100num [7]
4 years ago
10

Evaluate 5-3x when x=-7

Mathematics
2 answers:
Scrat [10]4 years ago
5 0
-16 right? because negative 3 times 7 is negative 21. 5 minus 21 gives you negative 16.
just olya [345]4 years ago
5 0

the answer is 5-3(7)

which gives you 26

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I'm not sure but I'll try help you work it out

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f(x)=\ln x\\\\g(x)=\ln11x=\ln11+\ln x\ \ (\ln11=const.)\\\\h(x)=\ln x^2=2\ln x\\\\p(x)=\ln3x^2=\ln 3+\ln x^2=\ln3+2\ln x\ \ (\ln3=const.)

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\ln a+\ln b=\ln(ab)\\\\\ln a^n=n\log a


Functions have the same derivatives if they differ a constant.

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h'(x) = f'(x)

g'(x) = (f(x) + const.)' = f'(x) + (const.)' = f'(x) + 0 = f'(x)

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Used:

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