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julia-pushkina [17]

2 years ago

15

A rectangular

1 answer:

igor_vitrenko [27]2 years ago

8 0

A = length x width

15,000 = (w + 30) x w
15,000 = $w^{2}$ + 30w
0 = $w^{2}$ + 30w - 15,000

Use quadratic formula to find that w= -15 + or - 5 $\sqrt{609}$ . Because distance cannot be negative, the width is -15 + 5 $\sqrt{609}$ meters or approximately 108.39 meters. This means that the length is approximately 138.39 meters.

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Step-by-step explanation:

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Using PEDMAS rule to solve it.

Now, simplifying:

We first open parenthesis which is (-7) = -7

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Now, we evaluate the exponent which is $-6^2=-36$

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