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2 years ago

DBE is obtained by enlarging ABC. If the area of ABC is 3 square units, what is the area of DBE?

Mathematics

1 answer:

Dennis_Churaev [7]2 years ago

5 0

<span>In two similar triangles, like the one we see above, the ratio of their areas is the square of the ratio of their sides.

Based on the graph, we see that BD is 3 times larger than BA. This means that the area of DBE will be 3</span>² times larger, or 9 times larger, than the area of ABC.

Area of ABC = 3 square units
Area of DBE = 3 * 9 = 27 square units
Answer is A.

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The function is given by:

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The graph is given at the end of this question.

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In the graph, it can be seen that it is pointing upwards for x of -5 and less, or 3 and higher, thus, the interval is:

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1 year ago

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11.75 feet

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1 year ago

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Third you have to assume that the distance there is the same distance as coming back. Again this is math. We can make this assumption.

Find the travelling time.

The bee spends 12 minutes hunting down the nectar in the flowerbed. Since it was away from the hive for a total of 16 minutes, the travelling time is

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d = rate * time

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6 * t = 4*240 - 4t Combine the like terms on the right.

6t = 960 - 4t Add 4t to both sides

6t + 4t = 960 - 4t + 4t Combine

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10t/10 = 960/10 Do the division

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1 year ago

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