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Phantasy [73]
3 years ago
5

Lin runs 4 laps around a track in 12 minutes.

Mathematics
2 answers:
Gnoma [55]3 years ago
8 0

Answer:

it would take her 42 mins

Step-by-step explanation:

inysia [295]3 years ago
3 0

Answer:

Hello There!!

Step-by-step explanation:

I think this is how you work it out:

4 times what is 12=3(4×3=12)

14×3=42

Whatever you do to the top you do it to the bottom so its times by 3.The answer is 42 minutes. Sorry if I'm wrong.

hope this helps,have a great day!!

~Pinky~

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blagie [28]

Volume of a sphere formula is: V=4 /3 πr^3

You know v=17000 and pi=3.14

17 000 = 4/3 x 3.14 x r^3

(divide 17 000 by 4/3 x 3.14 ) --> r^3 = 4060.51 (2dp)

(cube root is to get just r) r = 15.95 inches (2dp)

There 15 inches to the nearest inch.

Hope this is correct! :D


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3 years ago
Simplify the product (x-4)(x+3)
Kamila [148]

Answer:

Final answer is x^2-x-12.

Step-by-step explanation:

Given expression is \left(x-4\right)\left(x+3\right).

Now we need to find the product of the given expression \left(x-4\right)\left(x+3\right).

\left(x-4\right)\left(x+3\right)

=x\left(x-4\right)+3\left(x-4\right)

=x^2-4x+3x-12

combine like terms

=x^2-1x-12

=x^2-x-12

Hence final answer is x^2-x-12.

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Step-by-step explanation:

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