Answer:
us set up the following variables:
⎧
⎪
⎪
⎪
⎪
⎨
⎪
⎪
⎪
⎪
⎩
l
Length of Rectangle (cm)
w
Width of Rectangle (cm)
A
Area of Rectangle (
c
m
2
)
t
Time (s)
We are told that:
d
l
d
t
=
8
cm/s (const), and,
d
w
d
t
=
3
cm/s (const)
The Area of the rectangle is:
A
=
l
w
Differentiating wrt
t
(using the product rule) we get;
d
A
d
t
=
(
l
)
(
d
w
d
t
)
+
(
d
l
d
t
)
(
w
)
∴
d
A
d
t
=
3
l
+
8
w
So when
l
=
20
and
w
=
10
⇒
d
A
d
t
=
3
⋅
20
+
8
⋅
10
∴
d
A
d
t
=
60
+
80
∴
d
A
d
t
=
140
cm
Plug in x with -1
A negative number in parenthesis times an exponent is always positive.
8+3-7=4
Answer:
The measure of the labeled angles is 135°
Step-by-step explanation:
we know that
if a || b
then
-----> by alternate exterior angles
Solve for x
Find the measure of the labeled angles
Answer: the median and they should predict size 8
Step-by-step explanation:
It is this answer because if you put the numbers in order from least to greatest and then start to find the median you will get two answers for the median and the numbers you should get are two 8 so then you add the two 8's up and then you get 16 so then you divide it by 2 and you will get 8 and that is your answer.
A=+7
formula : An = A + (n-1) d
A30=6 + (30 - 1) 7
A30= 6 + 210 - 7
A30 = 209
