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Lemur [1.5K]
3 years ago
15

Need help 10 POINTS !!!

Mathematics
2 answers:
kotegsom [21]3 years ago
6 0

Step-by-step explanation:

Use Pythagoras theorem to get line BD

BD = √7.5²+5² = 9cm

No idea for BC

docker41 [41]3 years ago
5 0
You need to use Sin to find the length of BC and the answer is 8.
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A rectangle and a square have the same area. a. The width of the rectangle is w inches. The length of the rectangle is 15 inches
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Answer:

  a) w(4w-15)

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Step-by-step explanation:

a) If w is the width, and the length is 15 less than 4 times the width, then the length is 4w-15. The area is the product of length and width.

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__

b) If w is the side length, the area of the square is (also) the product of length and width:

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c) Equating the expressions for area, we have ...

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d) we can subtract the right side to get ...

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e) The rectangle is 5 units wide, and 4(5)-15 = 5 units long.

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