Answer:
123
Step-by-step explanation:
acasn cjhnckjasnjakwfn idk
Answer: We should add the constant 81 to the expression to have a perfect square trinomial.
The perfect square trinomial that would be formed would result from (x + 9)^2.
We can use foil to prove it.
(x + 9)(x + 9)
x^2 + 9x + 9x + 81
x^2 + 18x + 81
81 is the value that must go with 18x in the middle to form the perfect square trinomial.
47=20+(2x+y)
Let x represent the African stamps and y represent the Asian stamps.
Answer:
3619.11 cubic inches
Step-by-step explanation:
volume of a cylinder is 
diameter is 16 in, so radius (r) is 8 in
plug in values:
cubic inches