Answer:
5,4 I think thats it maybe..
Step-by-step explanation:
Answer: C)
Formula: 1/3(3.14)•r^2•h
Explanation: 1/3•1^2•4•3.14
Answer:

Step-by-step explanation:
we know that
The surface area of the square pyramid is equal to the area of the square base plus the area of its four triangular faces
so
![SA=b^2+4[\frac{1}{2}(b)(h)]](https://tex.z-dn.net/?f=SA%3Db%5E2%2B4%5B%5Cfrac%7B1%7D%7B2%7D%28b%29%28h%29%5D)
we have

substitute
![SA=1^2+4[\frac{1}{2}(1)(2)]](https://tex.z-dn.net/?f=SA%3D1%5E2%2B4%5B%5Cfrac%7B1%7D%7B2%7D%281%29%282%29%5D)

They're vertical angles so equal to each other so do 2x+3=3x+7
2x+3=3x+7
-3 -3
-----------------
2x=3x+4
-3x -3x
--------------
-x=4
divide both sides by -1
answer is
x=-4
if ur confused about any steps tell me and ill explain
Inverse operations are pairs of mathematical manipulations in which one operation undoes the action of the other