3 years ago

What is the difference between a rhombus and a HURRY 5 MINUTES LEFT!!

Mathematics

1 answer:

Alik [6]3 years ago

5 0

Answer:

A. rhombus is a parallelogram.

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2hrs 40 minutes

Step-by-step explanation:

The formula for distance is expressed as:

$d=st, s=speed, t=time$

#The time taken to run:

$d=st\\\\t=d/s\\\\t_r=d/8$

#The time taken to walk:

$d=st\\\\t=d/s\\\\t_w=d/2$

#Since the distances are the same:

$d_r=8t_r,d_w=2t_w\\\\8t_r=2t_w\\\\t_r+t_w=4->t_w=4-t_r\\\\\therefore8t_r=2(4-t_r)\\\\8t_r=8-2t_r\\\\t_r=1\frac{1}{3} \hrs\\\\t_w=4-1\frac{1}{3}=2\frac{2}{3}\ hrs$

Hence, Dana spends 2hrs 40 minutes walking back

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Step-by-step explanation:

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A carpenter has a board 400 inches long and 10 inches wide. He makes 5 identical shelves with the board and still has a piece of

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