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Ludmilka [50]
2 years ago
10

Find the sum -4a-(-9a)

Mathematics
1 answer:
-Dominant- [34]2 years ago
7 0

Answer:

5a I believe

Tell me if I'm right

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A stone is thrown upward from ground level. With what minimum speed should the stone be thrown so as to reach a height of 49 fee
Sveta_85 [38]
The correct answer of the given question above would be 8ft/sec. The minimum speed that the stone be thrown so as to reach a height of 49 feet is 8ft/sec. Consider this given solution here:
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3 years ago
A hemispherical tank is filled with water and has a diameter of 12 feet. If water weighs 62.4 pounds per cubic foot, what is the
Reil [10]

   Answer:

The total weight = 1286 × 62.4 = 80246 pounds.

Step-by-step explanation:

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V = 4/3×π×r³

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V = 4/3×π×r³

Since we need half of the volume as it is a hemispherical tank.

= 1286 ft³

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2 years ago
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