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3 years ago

How do you work the picture out?

Mathematics

1 answer:

FrozenT [24]3 years ago

5 0

Answer:

24cm²

Step-by-step explanation:

Perimeter of rectangle ABCF = 20 cm

One of the sides AB = 6 cm (AB)(Let it be L)

other side of Rectangle=B.

Perimeter of Rectangle = 2 (Length + width)

20 = 2(L+W) = 2(6 + W)

$\frac{20}{2}$ =6+B

10=6+B

B = 10-6

B = 4 cm

Width of Rectangle, W = 4 cm (BC)

Length of side of trapezium, CD = BD - BC = 9 - 4 = 5 cm

And length of EF = 3 cm

Area of Trapezium = $\frac{1}{2}$ ×(CD+EF)×CF

$\frac{1}{2}$ ×(5+3)×6

$\frac{8}{2}$ ×6

4×6=24

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soldier1979 [14.2K]

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Step-by-step explanation:

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3 years ago

a manufacturer has determined that if his company sells x items per day then their profit is given by P=-x^2+ 700 x-10000 euros.

Radda [10]

Answer:

Step-by-step explanation:

To find the minimum amount of items, x, that need to be sold for the manufacturer to make a profit, we can use the quadratic formula

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In context of the problem, we can only rely on the positive value, as the negative value would lead to a loss of profit.

$(-714.005)^2+700(-714.005)-10000=-0.360$

Furthermore, we must round to the nearest whole number, as you cannot make part of an item.

Lastly, if you were to plug in 14 into the equation for Profit, you would still have a negative number (i.e. a negative profit), thus requiring the manufacturer to make no less than 15 items to make a profit:

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2 years ago

a drum full of rice weighs 241/6 kg. If the empty drum weighs 55/4 kg, find the weight of rice in the drum

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Answer:

I believe the answer would be 186

Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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0.9 _______________23

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3 years ago

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mixas84 [53]

Answer:

Step-by-step explanation:

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2 years ago