Answer: ![\bold{x=\dfrac{1\pm \sqrt5}{2}}](https://tex.z-dn.net/?f=%5Cbold%7Bx%3D%5Cdfrac%7B1%5Cpm%20%5Csqrt5%7D%7B2%7D%7D)
both zeros are irrational numbers
<u>Step-by-step explanation:</u>
Note: The question would have made more sense if if it was 2/x = x - 1 but I will answer it as written.
![\dfrac{1}{x}=x-1\qquad \text{Restriction: }x\neq 0\\\\\\\text{Cross multiply, simplify, and set equal to zero:}\\1=x(x-1)\\\\1=x^2-x\\\\0=x^2-x-1\\\\\\\text{This is not factorable so you will need to use Quadratic Formula:}\\\\x=\dfrac{-(-1)\pm \sqrt{(-1)^2-4(1)(-1)}}{2(1)}\\\\\\x=\dfrac{1\pm \sqrt5}{2}](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7Bx%7D%3Dx-1%5Cqquad%20%5Ctext%7BRestriction%3A%20%7Dx%5Cneq%200%5C%5C%5C%5C%5C%5C%5Ctext%7BCross%20multiply%2C%20simplify%2C%20and%20set%20equal%20to%20zero%3A%7D%5C%5C1%3Dx%28x-1%29%5C%5C%5C%5C1%3Dx%5E2-x%5C%5C%5C%5C0%3Dx%5E2-x-1%5C%5C%5C%5C%5C%5C%5Ctext%7BThis%20is%20not%20factorable%20so%20you%20will%20need%20to%20use%20Quadratic%20Formula%3A%7D%5C%5C%5C%5Cx%3D%5Cdfrac%7B-%28-1%29%5Cpm%20%5Csqrt%7B%28-1%29%5E2-4%281%29%28-1%29%7D%7D%7B2%281%29%7D%5C%5C%5C%5C%5C%5Cx%3D%5Cdfrac%7B1%5Cpm%20%5Csqrt5%7D%7B2%7D)
Answer:
-3
hope this helps!
Step-by-step explanation:
(-1)3 - (-1) - 1 =
-3 - (-1) - 1 =
-2 - 1 = -3
Step-by-step explanation:
Mean of the origibal set = 20
No. of terms = 10
Sum = Mean x No. of terms
= 20 x 10 = 200
The sum of additional numbers to make the new set of observstion is 4 + 8 + 12...... + 40 = 220
New Sum = 200 + 220 = 420
The no of terms stay the same
New Mean = New Sum/ N
= 420/10
= 42
See attached
Step-by-step explanation:
The equation given is;
y+1= -3/5 (x-4)
This can be written is slope form of y=mx+c where m is the slope and c is the y-intercept
y+1=-3/5x+12/5
y= -3/5 x +12/5-1
y= -3/5 x +1.4
Plotting this equation gives a linear graph that has a negative slope and intersect the y-axis at y=1.4
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Linear graphs : brainly.com/question/9994201
Keywords: graph, line,coordinate plane
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