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GuDViN [60]
3 years ago
11

Please help I domt understand​

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
6 0
Standard form of an equation is Ax + By = C
So here, y = 2/5 * x - 3
y = (2x - 15) / 5
5y = 2x - 15
2x - 5y = 15
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A ratio is?
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8 0
3 years ago
The sum of infinity of the series 2/3 – 4/3² + 2/3³ + 4/3⁴ is​
Brut [27]

Answer:

\frac{3}{4}  -  \frac{2}{4}  =  \frac{1}{4}

6 0
3 years ago
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Two functions are given.
ArbitrLikvidat [17]

Hi

f(x) = g(x)   if    -x²+3x-2   - ( -x+1) = 0

                      -x² +3x-2 +x-1 = 0

                      -x² +4x -3 = 0

To solve, tou have to use the general method of resolution of a quadratic fonction.  

To determine if it's has a solution in R, let's calculate  Δ

Δ = (4)² - 4 * (1) *(-3)

Δ = 16 +12

Δ= 28  

as Δ≥ 0  so  the function allow two solution within R  

so S 1 =  ( -4 +√28) / 2            S 2 =   (-4 -√28 ) /2

    S1 =   ( -4 + 2√7) /2            S2 =    (-4 - 2√7) /2

    S1 =    (2 (-2 +√7) /2            S2      2 (-2 -√7)   /2

    S1 =    -2 +√7                       S2 =      -2 -√7

So the two function  are equal   twice. one  for   x = -2 +√7  and second x = -2-√7

4 0
3 years ago
Solve x: 60 pts if u can figure it out and the first one gets brainiest answer
jenyasd209 [6]

Answer:

11.65

Step-by-step explanation:

3x+99x=102x

1188/102=11.65

6 0
2 years ago
Read 2 more answers
Please help i really need it
dezoksy [38]
Answer: Perpendicular Bisector
3 0
3 years ago
Read 2 more answers
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