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Serhud [2]
3 years ago
8

NEED HELP SOON!!!! for any numbers a, b, and c, a(b + c)=ab+ac

Mathematics
1 answer:
navik [9.2K]3 years ago
6 0

The property displayed here is the distributive property.

If you have a variable or unknown number inside or outside of parentheses, you can distribute it to each term and add the terms together, and it will remain true.

Example:

4(x + 5)

After distributing, it'll look like this:

4x + 20


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Answer:

Step-by-step explanation: c

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Write the equation of a line perpendicular to 5x – 4y = - 3 that passes through the point (-5,2).
kolezko [41]

Answer: 5y + 4x = - 10

Step-by-step explanation:

Two lines are said to be perpendicular if the product of their gradients = -1.

If the gradient of the first line is m_{1} and the gradient of the second line is m_{2} , if the lines are perpendicular, them

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m_{1} = \frac{-1}{m_{2} }

The equation of the line given is 5x - 4y = -3 , we need to write this equation in slope - intercept form in order to find the slope.

The equation in slope -intercept form is given as :

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Writing the equation in this form , we have

5x - 4y = + 3

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y = 5x/4 + 3/4

comparing with the equation y = mx + c , then m_{1} = 5/4

Which means that m_{2} = -4/5 and the line passes through the point ( -5 , 2 ).

Using the equation of line in slope - point form  to find the equation of the line;

y - y_{1} = m ( x -  y_{1} )

y - 2 = -4/5 ( x +5)

5(y - 2 ) = -4 ( x + 5 )

5y - 10 = -4x - 20

5y + 4x = - 10

4 0
3 years ago
I ordered some books online for myself and friends. ​Each book costs \$ 13$13 and the store charges a flat rate for shipping of
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Answer: 13n + 20

Step-by-step explanation:

The cost of each book is $13. That means that if you end up buying "n" books, cost would be:

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You would also get charged a flat rate for shipping of $20 which would be added to the above cost to bring a total of:

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Marrrta [24]

Answer:

the stock is worth $110.21

Step-by-step explanation:

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Graph the image of the given triangle after a rotation of 180° about the origin
denis-greek [22]

Answer:

The bottom point is at (-1, 1) the right point is at (6,-2) and the left point is at (-5,4)

Step-by-step explanation:

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