Answer:
B
Step-by-step explanation:
Remark
I have to represent f(x) as plus +f(x)
I like to show this situation as +f(g(x)) which I think is much clearer.
+f(x) = 5x - 4
Solution
+f(g(x)) = 5(g(x)) - 4 What has happened is that wherever you see an x on the right you put in g(x).
Now on the right, you put whatever g(x) is equal to.
+f(g(x)) = 5(x^2 - 1) - 4
Remove the brackets.
+f(g(x)) = 5x^2 - 5 - 4
And make x = 0
+f(g(0)) = 5*0 - 5 - 4
+f(g(0)) = - 9
Answer:
x>15
Step-by-step explanation:
Given the inequality: 2x + 10 < 4x - 20
Collect like terms
2x-4x<-20-10
-2x<-30
x > -30/-2
x>15
Hence the solution is x>15
Answer:
x = 1/3
Step-by-step explanation:
3/5 + x = 14/15
we need to get a common denominator 15
3/5 * 3/3 = 9/15
9/15 + x = 14/15
subtract 9/15 from each side
9/15 - 9/15 + x = 14/15 - 9/15
x = 5/15
this simplifies divide the top and bottom by 5
x = 1/3
Answer:
b
Step-by-step explanation:
4 times x
The slope of the line = 50