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Yuliya22 [10]
3 years ago
5

I added a photo for this one plz help

Mathematics
1 answer:
e-lub [12.9K]3 years ago
4 0

Answer:

4/3

Step-by-step explanation:

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Abby's friend told her that he drew a quadrilateral with exactly one pair of parallel sides. Abby said it must be a trapezoid. I
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Yes, she is correct

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A trapezoid has exactly one pair of parallel lines and 4 sides

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What is the volume of this shape
hichkok12 [17]

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268.08

Step-by-step explanation:

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8-4d=12 what is d equal to ?
NARA [144]

Answer:d=-1


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4 0
3 years ago
A sheet of metal that is 30cm wide and 600cm long is to used to make a rectangular eavestrough by bending the shett an equal amo
tensa zangetsu [6.8K]

Answer:

The sheet should be turned up 7.5cm on each side to obtain maximum volume.

Step-by-step explanation:

If we make a rectangular eavesdrop, by bending the sheet along dotted line, then.

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Length of eaves trough = 600 cm

Width of eaves trough =  (30 - 2x) cm

We know that Volume is given by:

V = Length · Width · Height

V = (x)(30 - 2x)(600)

V = -1200x² + 18000x

To maximize the volume, we take the derivative and put it equal to zero.

\frac{dV}{dx} =\frac{d}{dx}( -1200x^2 +18000x)=0\\\frac{d}{dx}( -1200x^2 +18000x) = 0\\-(2)1200x+18000=0\\-2400x+18000=0\\x=\frac{18000}{2400}\\ x=7.5cm

8 0
3 years ago
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