4^3 is 64 and 3^4 is 81. Therefore the answer to the circled question is -17.
Well first you need to show the rest of the problems before i can truely help you sorry.
Answer:
it will turn off
Step-by-step explanation:
when it is disconceted it will cause it to shut off
hope this helps ||
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Answer:
4. SR= 17 (opposite angle of parallogram are equal)
Answer: 11.5%
Explanation:Since 1 minute = 60 seconds, we multiply 12 minutes by 60 so that 12 minutes = 720 seconds. Thus, we're looking for a probability that the auditor will spend more than 720 seconds.
Now, we get the z-score for 720 seconds by the following formula:

where

So, the z-score of 720 seconds is given by:

Let
t = time for the auditor to finish his work
z = z-score of time t
Since the time is normally distributed, the probability for t > 720 is the same as the probability for z > 1.2. In terms of equation:

Hence, there is
11.5% chance that the auditor will spend more than 12 minutes in an invoice.