Identify the vertex and 4 points you used f(x)=2x^2-16x+35

Make sure to show work plz my class almost ends

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

Answer this question, only if you know the answer. 30 points and brainliest!

The weight of an object in a particular scale is 175.2 lbs. the measured weight may vary from the actual weight by at most 0.1 lbs. what is the range of actual weights of the object