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kumpel [21]
3 years ago
6

If x is -3 and y is 2 what is x ^ 2 + y ^ 2 ​

Mathematics
1 answer:
Pavlova-9 [17]3 years ago
4 0

Answer:

ans=-2

Step-by-step explanation:

-3*2+2*2

=-6+4

=-2

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A street light is mounted at the top of a 15-ft-tall pole. A man 6 feet tall walks away from the pole with a speed of 5 ft/s alo
harina [27]

Answer:

25/3 ft/s

Step-by-step explanation:

Height of pole , h=15 ft

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Let BD=x

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All right triangles are similar

When two triangles are similar then the ratio of their corresponding sides are equal.

Therefore,

\frac{AB}{CD}=\frac{BE}{DE}

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Using the value

\frac{dy}{dt}=\frac{5}{3}(5)=\frac{25}{3}ft/s

Hence, the tip of  his shadow moving  with a speed 25/3 ft/s when he is 45 feet from the pole.

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3 years ago
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