Answer:
True
Step-by-step explanation:
“Rate of change” means the same as “slope.” If you are asked to find the rate of change, use the slope formula or make a slope triangle.
Answer:
Step-by-step explanation:
How approximate is approximate?
I'll give you an answer to 2 decimal places.
Area = pi * r^2
r = d/2
d = 14
r = 14/2
r = 7
Area = 3.14 * 7^2
Area = 3.14 * 49
Area = 153.86 sq in.
Lots of pizza! Enjoy!
Answer:
Step-by-step explanation:
(Add 25 to both sides)
( Take square of both sides)
~
Answer:
It is a perfect square. Explanation below.
Explanation:
Perfect squares are of the form
(
a
+
b
)
2
=
a
2
+
2
a
b
+
b
2
. In polynomials of x, the a-term is always x.(
(
x
+
c
)
2
=
x
2
+
2
c
x
+
c
2
)
x
2
+
8
x
+
16
is the given trinomial. Notice that the first term and the constant are both perfect squares:
x
2
is the square of x and 16 is the square of 4.
So we find that the first and last terms correspond to our expansion. Now we must check if the middle term,
8
x
is of the form
2
c
x
.
The middle term is twice the constant times x, so it is
2
×
4
×
x
=
8
x
.
Okay, we found out that the trinomial is of the form
(
x
+
c
)
2
, where
x
=
x
and
c
=
4
.
Let us rewrite it as
x
2
+
8
x
+
16
=
(
x
+
4
)
2
. Now we can say it is a perfect square, as it is the square of
(
x
+
4
)
.
Answer:
Step-by-step explanation:
We are given that DE
We have to determine given DE is exact or not.
Compare it with Mdx+Ndy=0
Therefore, 
If DE is exact then
Hence,it is exact.
Integrate w.r.t x on both sides
...(1)
By using the formula
Differentiate partially equation (1) w.r.t y
By using the formula:
Integrate w.r.t y
Substitute the value
