kie1148
23.06.2020 •
Mathematics
If y(x) = 3(x+5) +4/x, what is f(a+ 2)?
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Ответ:
Step-by-step explanation:
Theyre basically telling you that x = (a + 2)
All you have to do is replace x with a + 2
Next you have to simplify, 2+5 = 7 to get 3(a+7). Apply the distributive property to get 3a + 21. Your new equation is now:
Now here's the issue, you cant add those two terms yet because we need a common denominator. Multiply the numerator and denominator of 3a + 21 by a+2 to get:
You gotta now apply FOIL to get:
There is your answer
Ответ:
Answer
a irrational number, non-repeating decimal
b irrational number, terminating decimal
c rational number, terminating decimal
d rational number, non-repeating decimal
c is the right answer
Step-by-step explanation: