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mash [69]
3 years ago
8

How do I solve this equation? I need a refresher on Algebra.

Mathematics
1 answer:
yaroslaw [1]3 years ago
5 0
These equations seem tricky, but aren't as hard as you think. Just solve it like you are regularly adding fractions.

Your common denominator is 9x + 9, so

1/(9x+9)  =  36/(9x + 9)   -    (5x + 5)/9

1 - 36 + 5x + 5 / 9x - 9
30x - 30/9x - 9
10x-10/3x - 3
10(x-1)/3(x-1)
10/3

Hope this helped!
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Sorry I'm not good at math but I just want to learn how to do this
kolezko [41]
The answer is 8.6. I hope this helped you out!
4 0
4 years ago
An equation of a parabola with its vertex at (-3,2) and focus at (-3,-1) written in general equation form
german
<span> we have that
standard form of equation for parabola:
 (x-h)^2=-4p(y-k)
(h,k) --------->being the (x,y) coordinates of the vertex.
Parabola opens downwards because focus is below vertex on the axis of symmetry.
For given problem:
</span><span>vertex: (-3,2)
axis of symmetry: x=-3
p=distance from vertex to focus on the axis of symmetry=2-(-1)=3
4p=12
Directrix: y=2+p=5
Equation:
(x+3)^2=-12(y-2)

the answer is </span>(x+3)^2=-12(y-2)
5 0
3 years ago
What is the distance between the points (18, 39) and (3, 39) in the xy-plane?
nydimaria [60]

Answer:

C. 15 units,

Step-by-step explanation:

The y coordinates are both 39 so the line joining the 2 points is a horizontal line.

Distance = 18-3 = 15.

8 0
3 years ago
2 fair spinners are spun at the same time...
Morgarella [4.7K]
See the solution in the pdf file attached. Please, let me know if it is satisfactory for you.
Download pdf
8 0
4 years ago
41= 5x+17-3x need please
sergey [27]

Answer:

{\huge{\pink{\underline{\underline{Solution}}}}}

41=5x+17-3x

41=5x-3x+17

41=2x+17

41-21=2x

2x=20

x= \frac{20}{2}

Hence,value of x=10

Hope it will help you ☺☺✌✌

4 0
3 years ago
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