The formula for the radius r in terms of x . and for the maximum areas is x=2/
+4
Given that,
y forms a circle of radius r
y=2r
r=y/2
(2-y)- forms Square Side x
(2-y) = 4x
x=(2-y)/4
Now Sum of Area's=Area of Square +Area of Circle
Sum = r² + x²
Substitute the r and x values in above equation,
A(y)= y²/4+(y-2)²/ 16
To maximize Area A(y)
A'(y)= 0
2y/4 + 2(y-2)/16 =0
y/2 + (y-2)/8 =0
y = 2/+4
Y max will be max, x to be maximum.
for maximum sum of areas,
x=2/+4
Hence,The formula for the radius r in terms of x . and for the maximum areas is x=2/+4
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I would say 108 oz., 8 lb. but tell me if I'm wrong hope it helps you though :)
4 * 500 = $2,000
<span>Then, you must calculate how much he earned by the commission: </span>
<span>$42,000 * 3% </span>
<span>(3% = 3/100) </span>
<span>42,000 * 3/100 = 420 * 3 = $1260 </span>
<span>Finally, you add what he earned form the commission plus the 4 weeks salary: </span>
<span>$2,000 + $1260 = $3,260</span>
Answer:c is -3
D is a and b
Step-by-step explanation:
Answer:
240, 1800, 2040
Step-by-step explanation:
First find the surface area of the shape - base = 3 x 15 x 2 + 40 x 15 + 40 x 3 x 2 = 930 m ^2
Now find the area of base = 40 x 15 = 600
Now, the cost of painting = 10 pounds for 25 m^2. SO here cost = 600 / 25 x 10 = 24 x 10 = 240 pounds.
Now cost of tiles = 600 x 3 = 1800
Total cost = 1800 +240 = 2040
