Answer:
x = 20
Step-by-step explanation:
given f(x) = , we have to solve
= 4
Square both sides
()² = 4²
x - 4 = 16 ( add 4 to both sides )
x = 20
As a check
=
= 4 ← correct
US is __________ ft. (In your answer just put the number without a label) please help and thank you
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
Our expression:
If we know , let's substitute
, for
, in our expression:
Multiply:
Answer:
x=-9
Step-by-step explanation:
As the bases(3) are same,
we can conclude that the powers are equal.
Hence,