2 years ago

Which list shows the runners in order by their completion times from fastest to slowest

1 answer:

3 0

Answer:

answer is D

Step-by-step explanation:

12+1/2=12.5 12+2/5=12.4

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Trava [24]

Simply subtract 21 from 9.

Your answer is 12 :)

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3 years ago

zepelin [54]

So the total is 120. You want 1/6 of those.
So do (1/6)*120
You get 20.

YAY

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3 years ago

Irina-Kira [14]

Hey what part of geomatry are u doing

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3 years ago

Nuetrik [128]

Answer:

Completing the square we get: $(x-2)^2-(2)^2$

and factoring the term we get: $x(x-4)$

Step-by-step explanation:

We need to complete the square for the expression $x^2-4x$

For completing the square the expression would be of form $a^2+2ab+b^2=(a+b)^2$

For given expression we have to add (2)^2 and subtract to make it complete the square.

$x^2-2(x)(2)+(2)^2-(2)^2\\(x-2)^2-(2)^2$

Now, we have to factor the polynomial using formula $(a)^2-(b)^2=(a-b)(a+b)$

So, $(x-2)^2-(2)^2\\=(x-2-2)(x-2+2)\\=(x-4)(x-0)\\=x(x-4)$

Completing the square we get: $(x-2)^2-(2)^2$

and factoring the term we get: $x(x-4)$

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2 years ago

slava [35]

To find how many in 1 minute you will need to divide 264 by 4

66 jumps in 1 minute

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2 years ago