Question

Which of the following is the solution to the equation 25^(z − 4) = 125

z = 5.5

z = 3.5

z = −2.5

z = −0.5

Answer 1

Here's a quick explanation of Johnbc's answer.

For 25^x to equal 125, x has to be 1.5, because 25^1.5 is 125. So we need z-5 to equal 1.5, and the answer for that would be 5.5

Answer 2

Set the equation to solve for Z.
OR Guess and check.
Eventually you will arrive to 1.5.

Answer 3

thanks a lot :)

Answer 4

i need help with other as well

Answer 5

which?

Answer 6

What transformation has changed the parent function f(x) = log4 x to its new appearance shown in the graph below?

Answer 7

I do not remember this one pretty well except for what you multiply, divide, or/and add to the function transition and stretch it accordingly.

So for example it could be -4(log4x-5) or something like that but very unsure if you know the rules for it you should be able to evaluate it pretty easily

Hope that helps