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3 years ago

8

A dog runs to the fence which is located 20 meters away. It takes the dog 15 seconds to reach the fence. What is the average spe

ed ( velocity) of the dog?

1 answer:

Luba_88 [7]3 years ago

8 0

speed = distance / time = 20/15 = 1 1/3 m/s

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$\bold{[ \ Answer \ ]}$

$\boxed{\bold{\frac{x^3\left(6x^2+4x-1\right)}{2}}}$

$\bold{[ \ Explanation \ ]}$

$\bold{Divide: \ \left(18x^3\:+\:12x^2\:-\:3x\right)\:\div \:6x^2}$

$\bold{-------------------}$

$\bold{Rewrite}$

$\bold{18x^3+12x^2-3x \ = \ x^2\frac{x\left(6x^2+4x-1\right)}{2}}$

$\bold{Rewrite}$

$\bold{x^2\frac{x\left(6x^2+4x-1\right)}{2}}$

$\bold{Multiply \ Fractions \ (a\cdot \frac{b}{c}=\frac{a\:\cdot \:b}{c})}$

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$\boxed{\bold{[] \ Eclipsed \ []}}$

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