<span>We let x be the length and y be the width of the rectangle. Then,
Perimeter = 2x + 2y
100 = 2x + 2y
50 = x + y
y = 50 - x
Area = xy
A = x(50 - x)
A = 50x - x^2
We then take the derivative; set it equal to zero:
A ' = 50 - 2x
0 = 50 - 2x
2x = 50
x = 25
y = 50 - x
y = 50 - 25
y = 25
Therefore, the dimensions are 25 and 25.</span>
So, 6/7*56/1
56*6/7
336/7
the answer is 48
Answer:
XZ = 12x + 6
Step-by-step explanation:
XZ = XY + YZ
XZ = <u>4x</u> + 7 + <u>8x</u> - 1
XZ = 12x + 6
<span>1. 0.5 is greater, 2. A + 13c is greater, 3. the expressions are equal, 4. there is not enough information available — it depends how much greater a is than b, 5. The expressions are equal.</span>
