2/cos x
........................
Answer:
There wouldn't be a fraction form because its a whole number which is 9
Answer:
23.7555090109
Step-by-step explanation:
sin= opposite/hypotenuse
sin(53) = BC/60cm
BC= sin(53)*60 = 23.7555090109
Answer:
![\large\boxed{\dfrac{x+2}{x^2-6x-16}\div\dfrac{1}{9x}=\dfrac{9x}{x-8}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%5Cdfrac%7Bx%2B2%7D%7Bx%5E2-6x-16%7D%5Cdiv%5Cdfrac%7B1%7D%7B9x%7D%3D%5Cdfrac%7B9x%7D%7Bx-8%7D%7D)
Step-by-step explanation:
![\dfrac{x+2}{x^2-6x-16}\div\dfrac{1}{9x}=\dfrac{x+2}{x^2+2x-8x-16}\cdot\dfrac{9x}{1}\\\\=\dfrac{(x+2)(9x)}{x(x+2)-8(x+2)}=\dfrac{(x+2)(9x)}{(x+2)(x-8)}\\\\\text{cancel}\ (x+2)\\\\=\dfrac{9x}{x-8}](https://tex.z-dn.net/?f=%5Cdfrac%7Bx%2B2%7D%7Bx%5E2-6x-16%7D%5Cdiv%5Cdfrac%7B1%7D%7B9x%7D%3D%5Cdfrac%7Bx%2B2%7D%7Bx%5E2%2B2x-8x-16%7D%5Ccdot%5Cdfrac%7B9x%7D%7B1%7D%5C%5C%5C%5C%3D%5Cdfrac%7B%28x%2B2%29%289x%29%7D%7Bx%28x%2B2%29-8%28x%2B2%29%7D%3D%5Cdfrac%7B%28x%2B2%29%289x%29%7D%7B%28x%2B2%29%28x-8%29%7D%5C%5C%5C%5C%5Ctext%7Bcancel%7D%5C%20%28x%2B2%29%5C%5C%5C%5C%3D%5Cdfrac%7B9x%7D%7Bx-8%7D)
Answer:
68% of the data falls within one standard deviation, 95% percent within two standard deviations, and 99.7% within three standard deviations from the mean.
Step-by-step explanation: