Need help with problems 21-30. Answers only is fine if you want. I'll give helpful rating.

21 Select the correct answer. Which of these limit notations shows a horizontal asymptote of the function shown in the graph? 22 Select the correct answer. Which of these limit notations shows a vertical asymptote of the function shown in the graph? 01 3 2 -6 -5 -4 -3 -2 -1 1 2 1 3 4 ? 5 6 -1 -3 O A. lim f(x) x-1 O B. lim f(x) X-0 O c. lim f(x) X-1+ O D. lim f(x) X-323 Select the correct answer. 8x3 - 5x2 Find the horizontal asymptote for the function 2x2 + X - 1 O A. y= 0 O B. y= 2 O C. y= 4 O D. There is no horizontal asymptote.24 Select the correct answer. X Find the vertical asymptotes for the function x2 - 8x - 33 O A. x= -3 and x = 11 O B. x= -1 and x = 1 O C. x= 2 and x = 12 O D. x=-3 and x = 325 Select the correct answer. 3x3 Which is true about the asymptotes of the function f(X) = ? x2 - 64 O A. There is no asymptote. O B. The slant asymptote is at y = 3x. O C. The vertical asymptote is at x = 3. O D. The horizontal asymptote is at y = 8?26 Select the correct answer. Which is true about the concavity of the function x) = 2x4 + x3 - 5x2 + 5 over the interval (-1, 0)? O A. concave downward in (-1, 43.782) and doncave upward in (-0.782, 0) O B. concave upward in (-1, -0.532) and concave downward in (-0.532, 0) O C. concave upward in (-'I, -0.782) and concave downward in (-0.782, O) O D. concave downward in (-'I, -0.532) and concave upward in (-0.532, 0) 27 Select the correct answer. Which is true about the symmetry of the function for}: = w ? O A. It has no symmetry. O B. It has odd symmetry. O C. It has even symmetry. O D. It has periodic symmetry. . Select the correct answer. 5X+3 Which ofmese graphs shows the graph ohe function x) = 3x 4 ? 29 Select the correct answer. The dimension of a rectangular tank filled with water is 50m x 16m x 60m. At a certain instant, the tank begins to drain. Find the rate at which the volume of water is drained if the depth of water is changing at a rate of 12 m/min. (V= length x width x height) O A. -1,920 m3/min O B. -6,000 m3/min O C. -8000 m3/min O D. -9,600 m3/min30 Select the correct answer. Suppose the area of a circle increases at a constant rate such that, at a given point in time, the rate of change of area of the circle is equal in magnitude to the rate of change of the circumference. Find the radius at that instant. O A. r= 1 unit OB. r= * unit O C. r= 2x unit OD. = unit