<h2>
The diagonal is increasing at 1.8 cm/minute.</h2>
Step-by-step explanation:
Let l be one side,w be other side and s be diagonal.
We have
s² = l² + w²
We have
l = 8 cm
w = 6 cm
s² = l² + w²
s² = 8² + 6²
s² = 100
s = 10 cm
Taking derivative with respect to time in s² = l² + w²

The diagonal is increasing at 1.8 cm/minute.
Answer:
5/7
Step-by-step explanation:
Simplify the radical by breaking the radical up into a product of known factors.
Answer:
Length = 17 feet, Width = 5 feet
Step-by-step explanation:
Given:
The area of a rectangular wall of a barn is 85 square feet.
Its length is 12 feet longer than the width.
Question asked:
Find the length and width of the wall of the barn.
Solution:
Let width of a rectangular wall of a barn = 
<u>As length is 12 feet longer than the width.</u>
Length of a rectangular wall of a barn = 
As we know:


Subtracting both sides by 85

As width can never be in negative, hence width of a rectangular wall of a barn =
= 5 feet
Length of a rectangular wall of a barn = 
Therefore, length and width of the wall of the barn is 17 feet and 5 feet respectively.
x = 1
5(1)= -4y + 4
5= -4y + 4
-4. -4 1 = -4y
y = -¼
x = 2...
10 = -4y + 4 6 = -4y y = -3/2
x = 3..
15 = -4y + 4 11 = -4y y = -11/4