Answer:
8xy
Step-by-step explanation:
Subtract -13xy from -5xy
-5xy - (-13xy) =
-5xy + 13xy =
8xy
<em>good luck, i hope this helps:)</em>
Plug in -1 for x
and you'll get this:
Solve it further and you'll get:
Therefore,
where x = -1
<em><u>d.</u></em>
<em>Square cross section </em>
<em>Also, the smaller pyramid created is similar to the big one.</em>
Answer: -7/8
Step-by-step explanation:
you need to find a common denominator for all of them
in this case it would be 24
2 18/24 -(- 1 12/24) + (-20/24) -(-9/24) - (+ 4 16/24)
2 18/24 + 1 12/24 - 20/24 + 9/24 - 4 16/24
4 6/24 - 20/24 + 9/24 - 4 16/24
3 10/24 + 9/24 - 4 16/24
3 19/24 - 4 16/24
- 21/24
-7/8
