40ft hope I helped with your problem! Have a great day my comrade
Just find the GCF of the numerator and the denominator after multiplying across.
Answer:
The surface area is equal to 
Step-by-step explanation:
The surface area of the triangular pyramid is equal to the area of its four triangular faces
so
In this problem
![SA=4[\frac{1}{2}(b)(h)]](https://tex.z-dn.net/?f=SA%3D4%5B%5Cfrac%7B1%7D%7B2%7D%28b%29%28h%29%5D)
we have


substitute the values
![SA=4[\frac{1}{2}(15)(13)]=390\ in^{2}](https://tex.z-dn.net/?f=SA%3D4%5B%5Cfrac%7B1%7D%7B2%7D%2815%29%2813%29%5D%3D390%5C%20in%5E%7B2%7D)
Answer:
6, 12, 21, 10, then 4
Step-by-step explanation:
This is more difficult to answer than you would think, you can't actually see the picture when typing the answer
<h3>
Answer:</h3>
-5y +1
<h3>
Step-by-step explanation:</h3>
Let the polynomial to be subtracted be represented by Q. Then you want ...
... (y^2 -5y +1) -Q = y^2
... (y^2 -5y +1) = y^2 +Q . . . . add Q
... (y^2 -5y +1) -y^2 = Q . . . . .subtract y^2
... -5y +1 = Q . . . . . . . . . . . . . simplify
The polynomial to be subtracted is -5y +1.