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I am Lyosha [343]
3 years ago
6

HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Bezzdna [24]3 years ago
5 0
The answer is option C. 9xy sqrt 2x
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A sewer line drops 1 foot every 40 feet. How many feet will it drop over a distance of 100 feet
kodGreya [7K]

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2.5

Step-by-step explanation:


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2 years ago
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The weight Wkg of a metal bar varies jointly
maria [59]

Answer:

d = \sqrt{\frac{216W}{35L} }

Step-by-step explanation:

Given that W varies jointly as L and d² then the equation relating them is

W = kLd² ← k is the constant of variation

To find k use the condition W = 140 when d = 4 and L = 54, thus

140 = k × 54 × 4² = 864k ( divide both sides by 864 )

\frac{140}{864} = k , that is

k = \frac{35}{216}

W = \frac{35}{216} Ld² ← equation of variation

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6 0
3 years ago
What is the identity of 8z^3+27
Alik [6]

8 is a cube: 2³

27 is a cube: 3³

The expression can be identified as "the sum of two cubes": (2z)³ + 3³.

8 0
3 years ago
Please help!!<br><br> Find the slope of the line
Readme [11.4K]

Answer:

-2

Step-by-step explanation:

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2 years ago
There are 3 urns A, B and C each containing a total of 10 marbles of which 2, 7 and 4 respectively are red. One of the urns is s
sleet_krkn [62]
<h3>Answer:  7/13</h3>

======================================================

Explanation:

We know that the marble selected is red, so we don't need to focus on the other colors.

7 red marbles are in urn B out of 2+7+4 = 13 total red marbles.

The probability the red marble came from urn B is therefore 7/13

5 0
3 years ago
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