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iris [78.8K]
4 years ago
9

Sry bout the screen,BUT PLEASE HELP!!!!

Mathematics
2 answers:
Tasya [4]4 years ago
7 0

Answer:

40 mph

Step-by-step explanation:

20 miles in 1/2 hour

1/2 times 2 is 1, so 20 times two is 40 mph

Bumek [7]4 years ago
5 0
It would be 40 miles per hour. That is because if 20 miles is what he can cover in a half hour, than in one full hour he would go twice the amount of time. So 20 times 2 is fourty. So 40 miles per hour is the answer.
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Answer:

Step-by-step explanation:

Length of a segment between two points (x_1,y_1) and (x_2,y_2) is given by the formula,

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Coordinates of extreme ends of BC and EF are,

B(1, 4), C(3, -2), E(-3, -2) and F(-1, 1)

Length of BC = \sqrt{(1-3)^2+(4+2)^2}

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Length of EF = \sqrt{(-3+1)^2+(-2-1)^2}

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The length of BC is 6.32. The length of EF is 3.61.So, BC and EF don't have the same length.

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