Answer:
a(b(5)) = 76
Step-by-step explanation:
Evaluate b(5) then substitute the value obtained into a(x)
b(5) = 5² = 25, then
a(25) = 3(25) + 1 = 75 + 1 = 76
Answer:
Step-by-step explanation:
Answer:
C. 1/(x^2 +1) > 0
Step-by-step explanation:
The cube of a negative number is negative, eliminating choices B and D for certain negative values of x.
1/x^2 is undefined for x=0, so cannot be compared to zero.
The value 1/(x^2+1) is positive everywhere, so that is the expression you're looking for.
1/(x^2 +1) > 0
The answer would be: X=26