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Alex_Xolod [135]
3 years ago
10

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! I DONT KNOW HOW TO GRAPH SO

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
4 0

Answer:

(-1, -2) will be the solution.

Step-by-step explanation:

System of equations has been given as,

y = 3x + 1 ---------(1)

Input-output value table for the given line will be,

x       -2        -1          0          1

y      -5        -2         1           4

y = -x - 3 ----------(2)

Input-output value table for the given line will be,

x        -2         -1           0           1

y       -1          -2          -3         -4  

By plotting the given coordinates we can draw the straight lines.

And the point of intersection (common point) of these lines will be the solution of the given system of equations.

Hence, (-1, -2) will be the solution.

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What is the amount of money whose 25percent is Rs 350​
34kurt

Answer:

Rs 1400

Step-by-step explanation:

Let us take the required number be x. According to question ,

=> 25% of x = Rs 350

=> 25/100 × x = Rs 350

=> x = Rs 350 × 100 / 25

=> x = Rs 1400

<h3>• Hence the required answer is Rs 1400.</h3>
6 0
3 years ago
Hello, can someone help me with the working out to this problem
timama [110]

\text{If}~ \alpha ~\text{and}~ \beta~ \text{are the roots,}\\ \\x^2 -(\alpha + \beta)x +\alpha\beta = 0\\\\\text{For}~ x^2+3x-2=0\\\\\alpha +\beta=-\dfrac ba=-3\\ \\\alpha \beta = \dfrac ca = -2\\\\

\text{So,~} \alpha^3+\beta^3 = (\alpha + \beta)(\alpha^2 + \beta^2 -\alpha \beta)\\ \\~~~~~~~~~~~~~~~~=(\alpha+\beta)\left[(\alpha +\beta)^2 -2\alpha \beta - \alpha \beta\right]\\\\~~~~~~~~~~~~~~~~=(\alpha+\beta)\left[(\alpha +\beta)^2 -3\alpha \beta \right]\\\\~~~~~~~~~~~~~~~~=-3\left[(-3)^2-3(-2)\right]\\\\~~~~~~~~~~~~~~~~=-3(15)\\\\~~~~~~~~~~~~~~~~=-45\\\\\text{And}~~~\alpha^3 \beta^3= (\alpha \beta )^3 = (-2)^3 = -8\\\\

\text{Hence the equation whose  roots are}~ \alpha^3 ~\text{and}~ \beta^3~ \text{is:}\\ \\ x^2-(\alpha^3 + \beta^3)x +\alpha^3 \beta^3 =0\\\\\implies  x^2 -(-45)x+(-8)=0\\\\\implies x^2 +45x -8=0

3 0
3 years ago
Sofia still lives at home, but helps with the rent paying $200 per month. She has a job that pays about $700 per month after tax
OlgaM077 [116]

It is answer Budget A

5 0
4 years ago
Read 2 more answers
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3 0
3 years ago
Work out: 6 divided by 3/5
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= 0.4 
because...
if you divide 6 by 3 it gives you 2.
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