Answer:
<h2>- 417</h2>
Step-by-step explanation:
n - integer
The sum of n and 181 is equal to -236:
n + 181 = -236 <em>subtract 181 from both sides</em>
n + 181 - 181 = -236 - 181
n = -417
Given data:
The given table.
The expression for the average temperature is,
Thus, the value of x is 86 degree Fahrenheit.
Answer:
X Intercepts: (4,0) and -9,0
Step-by-step explanation:
Answer:
400 m^2.
Step-by-step explanation:
The largest area is obtained where the enclosure is a square.
I think that's the right answer because a square is a special form of a rectangle.
So the square would be 20 * 20 = 400 m^2.
Proof:
Let the sides of the rectangle be x and y m long
The area A = xy.
Also the perimeter 2x + 2y = 80
x + y = 40
y = 40 - x.
So substituting for y in A = xy:-
A = x(40 - x)
A = 40x - x^2
For maximum value of A we find the derivative and equate it to 0:
derivative A' = 40 - 2x = 0
2x = 40
x = 20.
So y = 40 - x
= 40 - 20
=20
x and y are the same value so x = y.
Therefore for maximum area the rectangle is a square.
