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Syllabus
2 ? 8x = 9 by completing the square. Show your work.
18. Use the discriminant to find the number of real solutions of the equation 3x 2 ? 5x + 4 = 0. Show your work.
A water balloon is tossed into the air with an upward velocity of 25 ft/s. Its height h(t) in ft after seconds is given by the function h(t) = ? 16t
2 + 25t + 3. Show your work.
19. After how many seconds will the balloon hit the ground? (hint: Use the quadratic formula)
20. What will the height be at t = 1 second
2 =8
3 =27
4 =64
5 = ?
18. 9P3
19. 10C4
20. There are 15 members of the show choir. In how many ways can you arrange 4 members in the front row when order does not matter?
7. 3x(4x ^4 ? 5x)
8. (5x ^43x^3+6x( 3x^3+11x^2? 8x)
9. (x ? 2) (3x-4)
10. (x + 6)^2
Step by step
2,11,96,97,87,5,71 , 41,53,59.