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AURORKA [14]
3 years ago
6

Choose like terms: 3x, y, 2x

Mathematics
1 answer:
Tresset [83]3 years ago
4 0
3x and 2x are alike terms, as they have the same variable
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write the equation of the line perpendicular to y= 5/2x+3 that passes through the point (-7,9). Type an answer using slope-inter
omeli [17]

Answer:

 5y = -2x + 31

Step-by-step explanation:

Given equation:

      y = \frac{5}{2} x + 3

Coordinate  = (-7,9)

Unknown:

Equation of the line perpendicular  = ?

Solution:

The slope - intercept format of a line is given as;

      y = mx + c

where y and x are the coordinates

           m is the slope

           c is the y-intercept

y = \frac{5}{2} x + 3

 From the given equation; slope is \frac{5}{2}

       

A line perpendicular will have a slope that is negative and the inverse of this;

      slope of perpendicular line  = -\frac{2}{5}

Since y= 9 and x = -7;

  So;

            9 = \frac{-2}{5}  x (-7) + C

            9 = \frac{14}{5} + C

           C  = 9 - \frac{14}{5}   = \frac{31}{5}

Now,

       y  =  -\frac{2}{5}x +  \frac{31}{5}

mulitply through by 5;

     5y = -2x + 31

3 0
3 years ago
Isabel works for 6 hours preparing for the art fair. She spends 3 hours on a sculpture and then paints 27 picture frames. How mu
Alecsey [184]

Answer: 3?

Step-by-step explanation: 3?

WOOOAH -_-

8 0
3 years ago
Regan earned a total of 15 by selling 5 cups of lemonade how many cups of lemonade does Reagan need to sell and altar on $42 ass
Gemiola [76]
Idk if its right sorry

8 0
3 years ago
Is the following number irrational or rational? Explain
sashaice [31]

Answer:

Rational

Step-by-step explanation:

It can be expressed as the ratio of two integers.

i.e. 0.01011011101111 = 1 011 011 101 111 / 100 000 000 000 000

6 0
2 years ago
A toy store marks down every toy by 15% of January write an expression that can represent how much a toy cost after the discount
tekilochka [14]
15÷100-100×p
15÷100=0.15
0.15×100=99.85
99.85×9
4 0
2 years ago
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