3 years ago

What Is the dependent variable the shoe size or the height

Mathematics

1 answer:

Maurinko [17]3 years ago

7 0

Answer:

The dependent variable is the shoe size

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago

Work out the area of the trapezium ABDE.<br> B<br> 9 cm<br> 6 cm<br> 8 cm<br> →D<br> E

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Answer:

Area of the trapezium ABDE = 30 cm²

Step-by-step explanation:

Area of a trapezium = $\frac{1}{2}(b_1+b_2)h$

Here, $b_1$ and $b_2$ are the parallel sides of the trapezium

h = Distance between the parallel sides

From the picture attached,

ΔCAE and ΔCBD are the similar triangles.

So by the property of similarity their sides will be proportional.

$\frac{AE}{BD}= \frac{CE}{CD}$

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CE = $\frac{9\times 8}{6}$

CE = 12 cm

Therefore, DE = CE - CD

DE = 12 - 8 = 4 cm

Now area of trapezium ABDE = $\frac{1}{2}(AE+BD)(DE)$

= $\frac{1}{2}(6+9)4$

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Therefore, area of the trapezium ABDE = 30 cm²

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3 years ago

Rachael can paint a room in 9 hours. Kelsey can paint same room in 15 hours. How long if they paint it together.

ElenaW [278]

Answer:

6 hours

Step-by-step explanation:

because if they work together it will be 9 hours slower than Kelsey's time alone.

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3 years ago

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2 years ago

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