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____ [38]
3 years ago
9

Can y’all help me with this one (2x-3)(4x+5)=

Mathematics
1 answer:
denis-greek [22]3 years ago
6 0

1. 2x-4x

2x

2. 3+5

8

3. 2x*8

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Katena32 [7]
The answer is the last one
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3 years ago
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Person A can paint the neighbor's house 5 times as fast as Person B. The year A and B worked together, it
LenKa [72]

Answer:

Person A paints the house in 12 days.

person B paints the house in 60 days.

Step-by-step explanation:

The together rate is the sum of each separate rate.

Person A can paint the neighbor's house 5 times as fast as Person B.

This means that the rate of person A is 1/x, and the rate of person B is 1/5x.

The year A and B worked together, it took them 10 days.

This means that:

\frac{1}{x} + \frac{1}{5x} = \frac{1}{10}

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When graphing inequalities, and you divide y by a negative number, do you switch the symbol?
xz_007 [3.2K]
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4 0
3 years ago
Which of the following best defines an angle?
scoray [572]

Answer:

Third option

Step-by-step explanation:

The first definition is not as broad as it should be, therefore, while an angle does meet that criteria, it's not a general definition, hence, it is incorrect. The second one is incorrect as well because a parabola has a vertex, and it is certainly not an angle. This definition is not specific enough, so it will be eliminated. The last one is again, too specific. The third one is the best answer because it is broad enough while still being specific.

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Answer:

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