Error is between steps 4 and 5. It should say:

Step 4: -9x < 27
Now divide by -9
Step 5: x > -3
Note that the inequality changes direction.
When you mean multiply or divide an inequality by a negative number, the inequality changes direction.

For example:
4 < 5
Multiply by -1:
-4 > -5

Another example:
-5 < 0
5 > 0

6 0

3 years ago

!!! 25 POINTS HELP PLS

weqwewe [10]

Answer:

Option (3)

Step-by-step explanation:

Given functions are,

f(x) = $\frac{1}{4^x}$

g(x) = log(2x)

By using a graphing utility we can draw the graphs of the given system of equations.

Common points of the graph will be the solutions of the equations,

From the graph attached,

Solution of the functions is → (0.937, 0.273)

→ (0.9, 0.3)

Option (3) will be the answer.

3 0

3 years ago