Find the surface area of the cone. leave your answer in terms of pi

The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.