Answer:
its the last one
Step-by-step explanation:
if you multiply 10 and 6 + 12 * 8 you get 576
now your 24ft to the second power is 24*24 = 576
Answer:
35 grams
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Step-by-step explanation:
350/10=35
Answer: 10
Step-by-step explanation: 15*2=30,
then you take 50 and subtract 30 from it that leaves you with 20
You then take that 20 and divide it by 2 (because there are two sides that have the width) you get 10
Answer:
Individual package would be 3.83
Hope this helps <3 Comment if you want more thanks and be sure to give brainliest (4 left) <3
Answer:
x = 28 m
y = 14 m
A(max) = 392 m²
Step-by-step explanation:
Rectangular garden A (r ) = x * y
Let´s call x the side of the rectangle to be constructed with a rock wall, then only one x side of the rectangle will be fencing with wire.
the perimeter of the rectangle is p = 2*x + 2*y ( but in this particular case only one side x will be fencing with wire
56 = x + 2*y 56 - 2*y = x
A(r) = ( 56 - 2*y ) * y
A(y ) = 56*y - 2*y²
Tacking derivatives on both sides of the equation we get:
A´(y ) = 56 - 4 * y A´(y) = 0 56 - 4*y = 0 4*y = 56
y = 14 m
and x = 56 - 2*y = 56 - 28 = 28 m
Then dimensions of the garden:
x = 28 m
y = 14 m
A(max) = 392 m²
How do we know that the area we found is a local maximum??
We find the second derivative
A´´(y) = - 4 A´´(y) < 0 then the function A(y) has a local maximum at y = 14 m
