Answer:
(x+y) / 72
Step-by-step explanation:
Kate needs to read 2 books
she's not sure how many pages are in each book.
Let
Number of pages in the first book = x
Number of pages in the second book = y
Total pages of the two books = x + y
Kate's summer vacation = 72 days
she is planning to read the same number of pages each day of her summer vacation.
Number of pages she will need to read each day = (x+y) pages / 72 days
Number of pages she will need to read each day = (x+y) / 72
There is no question in this.
Let's replace every copy of x with 7 and simplify.

Which is clearly false. This is probably the set of steps you followed to get "no solution".
Why is there no solution? Well let's subtract 9 from both sides to isolate the square root

Recall that the result of a square root operation is never negative. The range of
and
is the set of nonnegative numbers. There is no way we can have the left hand side result in -6
If there was a negative sign out front the square root and we have this instead

then the answer would be x = 7
Unfortunately, there isn't such a negative sign, so we stick with "no solutions".
Answer:
In a sequence described by a function, what does the notation f(3) = 1 mean?
ОА. .
The common difference of the sequence is 3.
OB.
The first term in the sequence has a value of 3.
O c.
The common ratio of the sequence is 3.
OD.
The third term in the sequence has a value of 1.
Answer:
D
Step-by-step explanation:
The surface area of the triangular prism consist of area of two rectangles 11 m by 17 m, one rectangle 11 m by 16 m and area of two triangles.



The surface area is
