When working with logarithms, remember that a subtraction sign means you can divide.
log(400) - log(4) can be turned into log(400/4), which is further simplified to log(100).
Answer:
20736
Step-by-step explanation:
xy^4 = z
x=4 , y=3
(4*3)^4=z
12^4=z
z=20736
The answer is C.
You need you use Pythagoras theorem 2 times to have 2 equations with the same sides i.e. for example a2 + b2 = 81 and a2 - b2 = 9.
You can do it as you have different triangles but with the same sides.
The absolute value parent function.