Step-by-step explanation:
f(x) = x² + 1, where x >= 0.
Let y be f(x).
=> y = x² + 1
=> x² = y - 1
=> x = √(y - 1) because x is non-negative.
Hence f^-1(x) = √(x - 1), where x >= 1.
Just add it and then round
8+12=20 now round
Answer: 61.33333.... wpm
Answer:729
81^3/2
(3^4)^3/2
3^6
729
Answer:
The answer is 8.
6-8+7-2-8+13
= (6 +7 + 13) - (8+2+8)
= 26 - 18
= 8