Giá trị lớn nhất của hàm số y=sinx+2cosx+1/sinx+cosx+2

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

What is the area of the trapezoid shown ?

Which expression is equivalent to the expression shown?