If the functions are inverses, then f(g(x)) = x.
A.
The functions are inverses of each other.
B. The domain of f(x) = x≠3. The domain of g(x) is x≠0.
The domain of f(g(x)) is (-∞, 0) ∪ (0, ∞).
The domain of g(f(x)) is (-∞, 3) ∪ (3, ∞).
Answer:
-1 ≤ x < (7/4)
Step-by-step explanation:
-4 is less than or equal to 4x, and 4x is less than and not equal to 7.
-4 ≤ 4x < 7
Divide everything by 4 to simplify
-1 ≤ x < (7/4)
Answer:
This is an RTD question. Here is a table based on the given information:
up/down . . . .rate . . . .time . . . .distance
upstream . . . . r-4 . . . . T . . . . 7
downstream . . . . r+4 . . . . T . . . .15
Now, rate x time = distance, so
time = distance / rate.
solve each for T and we get
T = (7/(r-4))
T = (15/(r+4))
set the times equal and we get
7%2F%28r-4%29+=+15%2F%28r%2B4%29
cross multiply to get
7r+%2B+28+=+15r+-+60
subtract 7r to get
28+=+8r+-+60
add 60 to both sides to get
88+=+8r
divide by 8 to get
r+=+8tep
Answer:
21.78 meters
Step-by-step explanation:
Divide 326.7/15
Answer:
B. 4 3/8
Step-by-step explanation:
7/8 X 5 = 4 3/8