## anonymous one year ago Please Help Got these questions wrong there driving me crazy ! MEDAL AND FAN !

1. anonymous

#1 Use the following quadratic equation: 3x2 – 8x = 48 To complete the square, you would add what number to both sides of the equation? Select one: a. 4 Incorrect b. 16 c.62/36 d. 64/36

2. anonymous

#2 Use the following quadratic equation: 3x2 – 8x = 48 The coordinates to the vertex would be: Select one: a. eq_3231a2.gif Incorrect b. equation c. equation d. None of the above

3. anonymous

#3 Use the following quadratic equation: 3x2 – 8x = 48 The value(s) of x would be: Select one: a. 2 or –2 b. 4 or –4 c. Incorrect d. |dw:1437706601242:dw|

4. anonymous

#4 Use the following quadratic equation: 3x2 – 8x = 48 The graph of the parabola would: Select one: a. Open downward as the middle coefficient is positive. b. Open downward as the middle coefficient is negative. Incorrect c. Open upward because the leading coefficient is negative. d. Open upward because the leading coefficient is positive.

5. anonymous

#5 Use the quadratic equation: x2 + 6x – 16 = 0 To complete the square, you would add what number to both sides of the equation? Select one: a. 16 b. –16 Incorrect c. 25 d. 9

6. anonymous

#6 Use the quadratic equation: x2 + 6x – 16 = 0 After completing the square, the quadratic equation would look like: Select one: a. (x – 3)2 = 25 b. (x – 3)2 = –25 Incorrect c. (x + 3)2 = 25 d. (x + 3)2 = 5

7. anonymous

#7 Use the quadratic equation: x2 + 6x – 16 = 0 The axis of symmetry would be: Select one: a. 3 b. –3 c. 6 d. No axis of symmetry as the parabola is not symmetrical. Incorrect

8. anonymous

|dw:1437707370806:dw|

9. anonymous

@LynFran

10. campbell_st

for the 1st equation divide every term by 3 $x^2 - \frac{8}{3} x = 16$ now halve the term in x so what is half of -8/3 ? then square the answer and add it to both sides

11. anonymous

how do i add it to both sides?

12. campbell_st

its exactly what it says 2x = 5 add 4 to both sides 2x + 4 = 5 + 4 or 2x + 4 = 9 same process

13. anonymous

and i have to solve that ? im so sorry but im really bad at math lol

14. Mrhoola

He wants you to divide (8/3) by 2