Answer:
20 is the longer piece, and 9 is the shorter piece
Step-by-step explanation:
9*2=18
18+2=20
20+9
Answer:
Does the answer help you?
Answer:
I hope it helps it was the best I can do.
Step-by-step explanation:
-x12 + x7 = 0
Factorization:
−x7(x − 1)(x4 + x3 + x2 + x + 1) = 0
Solutions based on Jenkins–Traub algorithm:
x1 = … = x7 = 0
x8 = 1
x9 = −0.809017 − 0.587785i
x10 = −0.809017 + 0.587785i
x11 = 0.309017 − 0.951057i
x12 = 0.309017 + 0.951057i
To simply determine if the solution is true. Simply plug in and or substitute the values of w for the expression. Then see if the left hand side is equal to the right side of the equation.
Answer: ![\bold{b)\quad \dfrac{-\sqrt{13}-5}{4}}](https://tex.z-dn.net/?f=%5Cbold%7Bb%29%5Cquad%20%5Cdfrac%7B-%5Csqrt%7B13%7D-5%7D%7B4%7D%7D)
<u>Step-by-step explanation:</u>
![\dfrac{3}{\sqrt{13}-5}\bigg(\dfrac{\sqrt{13}+5}{\sqrt{13}+5}\bigg)\\\\\\=\dfrac{3(\sqrt{13}+5)}{13-25}\\\\\\=\dfrac{3(\sqrt{13}+5)}{-12}\\\\\\=\dfrac{\sqrt{13}+5}{-4}\\\\\\=\dfrac{-\sqrt{13}-5}{4}](https://tex.z-dn.net/?f=%5Cdfrac%7B3%7D%7B%5Csqrt%7B13%7D-5%7D%5Cbigg%28%5Cdfrac%7B%5Csqrt%7B13%7D%2B5%7D%7B%5Csqrt%7B13%7D%2B5%7D%5Cbigg%29%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B3%28%5Csqrt%7B13%7D%2B5%29%7D%7B13-25%7D%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B3%28%5Csqrt%7B13%7D%2B5%29%7D%7B-12%7D%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B%5Csqrt%7B13%7D%2B5%7D%7B-4%7D%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B-%5Csqrt%7B13%7D-5%7D%7B4%7D)