Answer:
5.1 can be written as 51/10 (the quotient of the integers 51 and 10. So it is a rational number
Step-by-step explanation:
Recall that a rational number is a number that can be written as the quotient of two integer numbers.
In particular the number 5.1 can be written as 51/10 (the quotient of the integers 51 and 10. So it is a rational number.
total cost = 10 * adults + 6 * children
total cost = 10*2 + 6 * 3
total cost = 20 + 18
total cost = 38
well, p + (-2), now a sign in front of a grouping symbol usually means it has a 1*, so +(, really means +1*, thus p + (-2) really means p + 1*(-2), which gives us p - 2, and that'd be ordinally, 2 numbers to the left of "p".
likewise, 5 + p, is just the same as p + 5, so that value will be a number 5 numbers to the right of "p".
just as above, p + 1, is just one value to the right of "p".
![\bf \rule[0.35em]{2em}{0.25pt}\stackrel{p-2~\hfill }{|\rule[0.35em]{2em}{0.25pt}}|\rule[0.35em]{2em}{0.25pt}\boxed{P}\stackrel{~\hfill p+1}{\rule[0.35em]{2em}{0.25pt}|}\rule[0.35em]{2em}{0.25pt}|\rule[0.35em]{2em}{0.25pt}|\rule[0.35em]{2em}{0.25pt}|\stackrel{~\hfill p+5}{\rule[0.35em]{2em}{0.25pt}|}\rule[0.35em]{2em}{0.25pt}|](https://tex.z-dn.net/?f=%5Cbf%20%5Crule%5B0.35em%5D%7B2em%7D%7B0.25pt%7D%5Cstackrel%7Bp-2~%5Chfill%20%7D%7B%7C%5Crule%5B0.35em%5D%7B2em%7D%7B0.25pt%7D%7D%7C%5Crule%5B0.35em%5D%7B2em%7D%7B0.25pt%7D%5Cboxed%7BP%7D%5Cstackrel%7B~%5Chfill%20p%2B1%7D%7B%5Crule%5B0.35em%5D%7B2em%7D%7B0.25pt%7D%7C%7D%5Crule%5B0.35em%5D%7B2em%7D%7B0.25pt%7D%7C%5Crule%5B0.35em%5D%7B2em%7D%7B0.25pt%7D%7C%5Crule%5B0.35em%5D%7B2em%7D%7B0.25pt%7D%7C%5Cstackrel%7B~%5Chfill%20p%2B5%7D%7B%5Crule%5B0.35em%5D%7B2em%7D%7B0.25pt%7D%7C%7D%5Crule%5B0.35em%5D%7B2em%7D%7B0.25pt%7D%7C)
Answer: OPTION D.
Step-by-step explanation:
The formula that is used to calculate the slope of a line is:

Where
and
are two points on the line.
In this case the student finds the slope of the line that passes trough these points:

You can notice that she writes in the numerator that:

So she chose the point
as
and the point
as
.
Then
and
in the denominator must be:

Therefore, she did not keep the order of the points the same in the numerator and the denominator.
Answer:
4 a+8 ab+8b
Step-by-step explanation:
8 a-4 a+6ab+2ab+5 b+3 b
4 a+8 ab+8b