Answer:
Since both terms are perfect squares, factor using the difference of squares formula,
a
2
−
b
2
=
(
a
+
b
)
(
a
−
b
)
where
a
=
3
x
and
b
=
1
.
(
3
x
+
1
)
(
3
x
−
1
)
Step-by-step explanation:
Answer:
(2×2000)+(2×500)+(2×40)+(2×6)
A water tank is a cylinder
I don't know if there's anything like circumference of a cylinder but I know of area
The formula is
where r=radius h=height
Answer:
1 4 x 25
2 25 x 4
Step-by-step explanation:
28÷7= 4
4+111= 115
115-16= 99
Answer-99