Given:
The function is
.
To find:
The function
.
Solution:
We have,

Substitute f(x)=y.

Interchange x and y.

Divide both sides by 3.

Taking power 4 on both sides.

Subtract 7 from both sides.


Substitute
.

Therefore, the correct option is C.
To solve for x in terms of b, simply treat b as a number, and solve for x as usual: first of all, we expand the left hand side:

Subtract 10 from both sides:

Divide both sides by -2b:

This means that in particular, if we set
, we have

Answer:
the battery rate is 6.5
Step-by-step explanation:
Answer:
-3/2
Step-by-step explanation:
(y2 -y1)/(x2-x1)
(-2 + 5)/(0 - 2)
6% of 100 is 6
100*70 = 7000
6*70 = 420
therefore
6% of 7000 = 0.06 * 7000= 420