Answer: 7
Step-by-step explanation:
2 to the 5th power would be 32 and 5 to the 2nd power would be 25 so 32-25 = 7
Answer:

Step-by-step explanation:
Hello,
First, of all, as x is positive we know that:

Let's simplify the expression:

Hope this helps.
Do not hesitate if you need further explanation.
Thank you
Answer: 5
Step-by-step explanation:
25*11=275

25 is perfect square but 11 is not so 11 stays inside the radical while 25 is changed to 5
12 x b = 480
12 x 40 = 480
The answer is 40
Answer: z = -7
Step-by-step explanation:
Simplify the equation so the Integer is on the right:
8 - 12z = 92
-12z + 8 = 92
Now subtract 8 from both sides:
-12z + 8 - 8 = 92 - 8
-12z = 84
Now divide both sides by 12 to get z by itself:
-12z/-12 = 84/-12
z = -7