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3 years ago

10

A 1 liter jar is filled with water right to the top. A rock is then dropped in the jar and 400 mL of water is displaced (pushed

out). What is the volume of the rock?

2 answers:

Ivahew [28]3 years ago

7 0

Answer:

Step-by-step explanation:

400ml

makvit [3.9K]3 years ago

5 0

The rock will only displace the same amount of water that the rock's volume is.

1 mL= 1 cm^3
400mL= 400 cm^3

The answer is 400 cm^3

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2 years ago

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3 years ago

Find two numbers whose difference is 176 and whose product is a minimum.

Zanzabum

Let the two required numbers be x and y, then x - y = 176, thus y = x - 176.

Let the product of the two numbers be represented by

$P = xy x(x - 176) = x^2 - 176x$

For the product to be minimum, $\frac{dP}{dx} =0$

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Thus, y = 88 - 176 = -88

Therefore, the two numbers are 88 and -88.

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3 years ago

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Tju [1.3M]

Answer:

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Step-by-step explanation:

$6y^2 + 2y + 5 - (5y^2 - 64 - 11)$

$6y^2 + 2y + 5 - 5y^2 + 64 + 11$ [pay attention to the signs :)

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