Solve the inequality 7 < 4x + 3 £ 21, and express the solution as an interval.?

1.Solve the inequality 7 %26lt; 4x + 3 £ 21, and express the solution as an interval.


a. (1, 4.5]


b. [1.75, 7)


c. (7/3, 17)


d. [4.5, 5.25]





2.Solve the inequality 2|x - 10| %26lt; 3, and express the solution as an interval.


a. (7, 8.5)


b. (8.5, 10)


c. (8.5, 11.5)


d. (11.5, 13)





3.A baseball is hit into the air so that the number of feet s above the ground after t seconds is given by s = -16t^2 + 96t. How long will it take to first reach a height of 144 feet above the ground?





4.Solve the inequality (x + 1)(x - 6) %26lt; 0, and express the solution using interval notation.


a. (-6, 1)


b. (-¥ ,-6) È (1, ¥ )


c. (-1, 6)


d. (-¥ ,-1) È (6, ¥ )





5.Express as a polynomial: (x - 4)(2x + 3).

Solve the inequality 7 %26lt; 4x + 3 £ 21, and express the solution as an interval.?
1. a. (1, 4.5]


2. c. (8.5, 11.5)


3. 144 = -16t^2 + 96t =%26gt; t^2-6t+9 = (t-3)^2 = 0 %26gt; t = 3


4. d. (-¥ ,-1) È (6, ¥ )


5. 2x^2-5x-12