If Log 4 (x) = 12, then log 2 (x / 4) is equal to A. 11 B. 48 C. -12 D. 22

Step-by-step explanation:

Make the base 4 from both sides.

Simplify the equation.

Let x = 16777216

Evaluate.

which is your answer "D"

Step-by-step explanation:

If      this means that : based in the definition of logarithm.

And this exponential expression can also be written using that :

so now we know what x is with base 2 (which is needed for the second expression:

And this also can be written in exponent form (using the unknown "?" we need to find) as:

Since we know the value of x in base 2 (from our first analysis), then:

Therefore,

x = -2

y = 848

step-by-step explanation:

plug in the numbers

use formula for the circle a=3.14

step-by-step explanation: