Hello from MrBillDoesMath!
Answer:
The two expressions are equal for all x,y. In fact they are an identity.
Discussion:
(x +2 ) (y + 3) = xy + 3x + 2y + 6 (left hand side of =)
xy + 2y + 3(x+2) = xy + 2y + 3x + 6 (right hand side of =)
As the boldfaced values are equal the left hand side equals the right hand side! Hence the two expressions are equal for all x,y. In fact they are an identity.
Thank you,
MrB
Answer:
The height for the original part is 10 cm
Never mind that the solid is standing at the angle of 60 degrees.
If you cut the bottom of the solid at the angle of 30 degrees, and put that part on the top of the solid,
the height is going to be exactly 10 cm.
So, we have... V = (10 * 4 * 3) / 8
or V = 5 * 2 * 1.5
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
------------------(1)
-----------------------(2)
Subtracting eq (2) from eq (1)