A. 3a + 5/a +2
b. 3(f(a)+ 5/f(a)+2
c. 3(a+2)+5/a+2
ALGEBRA 2 question. if f(x) = 3x + 5/x, what is f(a+2)?
2015-09-21 5:15 am
回答 (7)
2015-09-21 5:31 am
f(x) = (3x + 5)/x
f(a + 2) = [3(a + 2) + 5]/(a + 2) ...... The answer is (c)
f(a + 2) = [3(a + 2) + 5]/(a + 2) ...... The answer is (c)
2015-09-21 5:19 am
3(a+2)+5/(a+2)
...
(3(a+2)^2+5)/(a+2)
(3(a^2+4a+4)+5)/(a+2)
(3a^2+12a+12+5)/(a+2)
(3a^2+12a+17)/(a+2)
...
(3(a+2)^2+5)/(a+2)
(3(a^2+4a+4)+5)/(a+2)
(3a^2+12a+12+5)/(a+2)
(3a^2+12a+17)/(a+2)
2015-09-21 2:59 pm
f(x)=(3x+5)/x
f(a+2)=[3(a+2)+5]/(a+2)
f(a+2)=[3(a+2)+5]/(a+2)
2015-09-21 5:18 am
c)
2015-09-21 10:59 am
3 (a + 2) + 5 / (a + 2)
This could be C if brackets were properly used !!!!!
This could be C if brackets were properly used !!!!!
2015-09-21 5:49 am
f(a + 2) = 3(a + 2) + 5/(a + 2)
This matches neither answer (a) nor (c). Answer (b) has mismatched parentheses, leaving it with no clear interpretation.
This matches neither answer (a) nor (c). Answer (b) has mismatched parentheses, leaving it with no clear interpretation.
2015-09-21 6:57 am
c. 3(a+2)+5/a+2
see step by step solution:
https://www.symbolab.com/solver/function-arithmetic-composition-calculator/f%5Cleft(x%5Cright)%3D%5Cfrac%7B3x%20%2B%205%7D%7Bx%7D%2C%20%20f%5Cleft(a%2B2%5Cright)/?origin=enterkey
hope this helps
see step by step solution:
https://www.symbolab.com/solver/function-arithmetic-composition-calculator/f%5Cleft(x%5Cright)%3D%5Cfrac%7B3x%20%2B%205%7D%7Bx%7D%2C%20%20f%5Cleft(a%2B2%5Cright)/?origin=enterkey
hope this helps
收錄日期: 2021-04-18 00:17:05
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150920211550AApA0Ax