Step-by-step explanation:
So let's make the two numbers "X" and "Y".
X + Y = 5
That's the very first line
let's take X as the bigger number and Y as the Smaller number.
3x + 2y = 28
now we have two equations and two unknowns.
We can also arrange the first equation to be as
X = 5 - Y
substitute this equation in the 2nd equation
3(5- Y) + 2Y = 28
15 - 3Y + 2Y = 28
-Y = 13
Y = -13
Substitute Value of Y in any equation to get X
X = 5 - (-13)
X = 18
I think answer should be 3/4 please give me brainlest let me know if it’s correct or not okay thanks bye
x² + y² = 5
y = 2x/3 + 1
In a simple way to find the intersections you can just throw the y value in the other equation, so
x² + y² = 5
x² + (2x/3 + 1)² = 5
x² + (2x/3)² + 2.2x/3.1 + 1² = 5
x² + 4x²/9 + 4x/3 + 1 = 5
13x²/9 + 4x/3 + 1 - 5 = 0
13x²/9 + 4x/3 - 4 = 0
Multiply by 9
13x² + 12x - 36 = 0
Δ = b² - 4.a.c
Δ = 12² - 4 . 13 . -36
Δ = 144 - 4. 13 . -36
Δ = 2016
There are 2 real roots.
x = (-b +- √Δ)/2a
x' = (-12 + √2016)/2.13
x'' = (-12 - √2016)/2.13
x' = 32,8998886412873 / 26
x'' = -56,8998886412873 / 26
x' = 1,2653803323572037
x'' = -2,188457255434127
Rounding
x' = 1,27
x'' = -2,19
Now we need to put this value in the y equation to know the y coordinate.
y = 2x/3 + 1
y' = 2.1,27/3 + 1
y' = 2,54/3 + 1
y' = 1,8466666...
y' = 1,85
y = 2x/3 + 1
y'' = 2.(-2,19)/3 + 1
y'' = -4,38/3 + 1
y'' = -0,46
So the points are: (1,27;1,85) and (-2,19;-0,46)
Answer:
7 is the right aswer
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
when there is degree on any number like 3 3x 4 a b etc it's value will always be one.Remember that so
3x^0
3Xx^0
3X1
3
