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KengaRu [80]
3 years ago
5

HELPP PLS

Mathematics
1 answer:
aev [14]3 years ago
4 0

Answer: 1/14

Solution:

1/2 + x = 4/7  

4/7 - 1/2 = x

8/14 - 7/14 = 1/14

Check:

1/2 + 1/14 = 7/14 + 1/14 = 8/14 = 4/7  

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1. Line L passes through point (-1, 2) and (-3,-2) on a coordinate plane. Line
ANEK [815]

Answer:

Slope of a line passing through (x_{1},y_{1}) and (x_{2} , y_{2}) is given by:

\frac{y_{2}-y_{1} }{x_{2}-x_{1}}

Now,

Slope of line L, (m) = \frac{-3-(-1)}{-2-2} = 0.5

Slope of line M, (n) = \frac{-1-1}{W-1} = \frac{-2}{W-1}

If the lines L and M are parallel to each other,

m = n

or, 0.5 = \frac{-2}{W-1}

or, 0.5 (W - 1) = -2

or, W - 1 = -4

or, W = -3

Therefore the required value of W is -3.

3 0
3 years ago
(6x – 8) + (–x + 7)
PSYCHO15rus [73]

Answer:

5x -1

Step-by-step explanation:

(6x – 8) + (–x + 7)

Combine like terms

6x -x   -8+7

5x -1

6 0
3 years ago
Read 2 more answers
Which figure shows a reflection of pre-image ABC over the y-axis?<br><br> Please help
bija089 [108]

Answer:

The third one C)

Step-by-step explanation:

when you reflect over the y-axis you multiply the x-coordinates by -1

Hope that was helpful

4 0
3 years ago
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A quadratic function f is defined by /«) = (x - 7)(x + 3).
lesya692 [45]

Answer:

Step-by-step explanation:

The two x intercepts are

x -  7 = 0

x = 7

x + 3= 0

x = - 3

The y intercept is just - 7 * 3 = - 21

To prove this  more formally

f(x) = (x - 7)(x + 3)

f(x) = x^2 - 7x + 3x - 21

f(x) = x^2 - 4x - 21

6 0
3 years ago
Find the system of inequalities representing the given situation?
Diano4ka-milaya [45]

<u>The question was written by the student in a comment because the image contains no question at all.</u>

  • <u>Kathy sells candles for $3 and flowers for $5. She plans to sell at least 200 items and likes to earn a minimum of $2500. </u>

Answer:

\left\{\begin{matrix}x + y = 200\\ 3x + 5y = 2500\end{matrix}\right

Step-by-step explanation:

<u>System of equations</u>

Kathy sells candles for $3 and flowers for $5. Let's set the following variables:

x = number of candles Kathy sells

y = number of flowers Kathy sells

She plans to sell 200 items, thus:

x + y = 200

She also likes to earn $2,500. The equation for this condition is:

3x + 5y = 2500

The system of equations is

\left\{\begin{matrix}x + y = 200\\ 3x + 5y = 2500\end{matrix}\right

5 0
3 years ago
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