Answer:
option c : k = 8
Step-by-step explanation:
Given ( x+ 2 ) is a factor of f(x) , that is f( -2 ) = 0
![f(x) = x^3 -9x^2 + kx + 6 0\\\\f(-2) =0\\\\(-2)^3 - 9(-2^2) + k (-2) + 60 = 0\\\\-8 - 36 -2k + 60 = 0\\\\-2k + 16 = 0\\\\-2k = -16\\\\k = \frac{-16}{-2} = 8](https://tex.z-dn.net/?f=f%28x%29%20%3D%20x%5E3%20-9x%5E2%20%2B%20kx%20%2B%206%200%5C%5C%5C%5Cf%28-2%29%20%3D0%5C%5C%5C%5C%28-2%29%5E3%20-%209%28-2%5E2%29%20%2B%20k%20%28-2%29%20%2B%2060%20%3D%200%5C%5C%5C%5C-8%20-%2036%20-2k%20%2B%2060%20%3D%200%5C%5C%5C%5C-2k%20%2B%2016%20%3D%200%5C%5C%5C%5C-2k%20%3D%20-16%5C%5C%5C%5Ck%20%3D%20%5Cfrac%7B-16%7D%7B-2%7D%20%3D%208)
Answer:
315 inches
Step-by-step explanation:
Answer:
20 percent
Step-by-step explanation:
5 times 20 cause 5 goes into 25 evenly
Answer:
Fraction 25/100; decimal 0.25