
Differentiate both sides wrt
:

By the chain rule, we get


Solve for
:


Area(A)= lw
perimeter(P)= 2w+2l= 34in
length(l)= w+5
width(w)= w
1/2 P= 17= w+l
17= w+(w+5)
17= 2w+5
2w=12
w=6 in
l= w+5
l= 6+5
l=11 in
A= lw= (11)(6)= 66in²
Answer:
Area of rectangle is 66 in².
The point-slope form of ay line is:
y-y1=m(x-x1), where m=slope and (x1,y1) is any point on the line.
In this case we are given that m=-12 and (x1,y1) is (5,3) so
y-3=-12(x-5)
Answer:
A
Step-by-step explanation:
Area of a square=L^2
Area=(7a4b8)^2
Area=49a8b16