The value of the given prefix expression *2 / 8 4 3 is calculated to be; 1
<h3>How to work with preorder transversals?</h3>
We are given the expression; *2 / 8 4 3
We will start from the rightmost operation symbol.
For every operation symbol, the two integers following the operation symbol are the symbols on which the operation needs to be performed. Then we replace the operation symbol with the two following integers by the result of the operation.
Then we repeat for the rightmost operation symbol in the remaining string.
*2 / 8 4 3
8 / 4 = 2
⇒ *2 2 3
2 * 2 = 4
4 - 3 = 1
Thus the value of the prefix expression is then 1.
Read more about preorder transversals at; brainly.com/question/12947940
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John will need to sleep for 10.3 hours before his second exam so that the
average of his two exam scores is an 80.
We were given
8 hours of sleep = 70
To get average of 80
<u>70+ x</u> = 80
2
Cross multiply:
70+x = 160
x= 160-70
= 90.
If 8 hours of sleep = 70
x hours of sleep = 90
Cross multiply
8× 90 = 70 × x
720 = 70x
x = 720/70
x = 10.2857
≈ 10.3 hours of sleep
Read more about Equation here brainly.com/question/17202391
Answer:
They work for the people of their districts and issue pardons for those serving time in prison.
The answer is B and C. Hope this helps!