Answer:
bottom side (a) = 3.36 ft
lateral side (b) = 4.68 ft
Step-by-step explanation:
We have to maximize the area of the window, subject to a constraint in the perimeter of the window.
If we defined a as the bottom side, and b as the lateral side, we have the area defined as:

The restriction is that the perimeter have to be 12 ft at most:

We can express b in function of a as:

Then, the area become:

To maximize the area, we derive and equal to zero:

Then, b is:

Answer:
0.98
Step-by-step explanation:
sinR = opposite/hypotenuse
sinR = QS/QR
sinR = 60/61
sinR = 0.9836065574
Answer:
The missing dimension is

Step-by-step explanation:
The Pythagorean Theorem states that

Note that c is the hypothenus <em>(</em><em>the</em><em> </em><em>hypothenus</em><em> </em><em>is</em><em> </em><em>always</em><em> </em><em>opposite</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>right</em><em> </em><em>angle</em><em> </em><em>of</em><em> </em><em>a</em><em> </em><em>triangle</em><em>)</em>
Therefore


Therefore the missing dimension is 5
Answer:
b=4
Step-by-step explanation:
4b + 5 = 1 + 5b
Subtract 4b from each side
4b-4b + 5 = 1 + 5b-4b
5 =1+b
Subtract 1 from each side
5-1 = 1-1+b
4 =b