X = E/W dimension
<span>y = N/S dimension </span>
<span>4x + 4x + 2y + 2y = 64 </span>
<span>8x + 4y = 64 </span>
<span>4y = 64 - 8x </span>
<span>y = 16 - 2x </span>
<span>Area = xy = x(16 - 2x) = 16x - 2x^2 </span>
<span>Maximum of y = ax^2 + bx + c is when x = -b / 2a </span>
<span>so x = -16 / -4 = 4 </span>
Answer:
Step-by-step explanation: Let w = the width of the given rectangle. Let l = the length of the given rectangle. Since the length l is 3 times the width, then l = 3w. The formula for the area A of a rectangle is: A = lw. It's given that the area A = 60 square inches (in²); t...
Given
Studying the rainfall on the first day of September, October, and November is not a random sample for studying the rainfall on the first day of each month for one year.
To explain why.
Explanation:
It is given that,
Studying the rainfall on the first day of September, October, and November is not a random sample for studying the rainfall on the first day of each month for one year.
The reason for Studying the rainfall on the first day of September, October, and November is not a random sample is, because these months are three specific months which means other months cannot be selected.
Hence, the answer is option b).
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Answer:
3 and 5
Step-by-step explanation:
use the guess and check method form the numbers 1, 3, 5 since only the square of these 3 numbers are under 34.