Mathematics

Mathematics, 01.09.2019 02:30, jjjjjj4999

What are the solution of the equation x^2- 4x -32 = 0 ? show your work and justify each step.

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Mathematics, 01.07.2019 06:00, BigDaddy1220

(07.02 mc) what is the value of y in the equation 2(2y − 12) = 0? (5 points) 4 6 7 8 4. (07.03 lc) how many solutions does the equation 6z − 3z − 7 = −2 + 3 have? (5 points) two none infinitely many one 5. (07.03 lc) the steps below show the incomplete solution to find the value of y for the equation 4y − 2y − 4 = −1 + 13: step 1: 4y − 2y − 4 = −1 + 13 step 2: 4y − 2y − 4 = 12 step 3: 2y − 4 = 12 which of these is most likely the next step? (5 points) 2y = 3 2y = 8 2y = 16 2y = 18 6. (07.03 mc) what is the value of z in the equation 2(4z − 3 − 1) = 166 − 46? (5 points) 14 15 16 17 7. (07.05 lc) what is the value of x in the equation −x = 2 − 3x + 6? (5 points) 8 4 −4 −8 8. (07.05 lc) how many solutions does the equation 4s + 8 = 3 + 5 + 4s have? (5 points) two none one infinitely many 9. (07.05 mc) which of these is a simplified form of the equation 6y + 4 = 8 + 2y + 2y? (5 points) 6y = 8 10y = 12 2y = 4 4y = 12 10. (07.05 hc) the work of a student to solve the equation 3(2x − 4) = 8 + 2x + 6 is shown below: step 1: 3(2x − 4) = 8 + 2x + 6 step 2: 5x − 7 = 14 + 2x step 3: 5x − 2x = 14 + 7 step 4: 3x = 21 step 5: x = 7 in which step did the student first make an error and what is the correct step? (5 points) step 2; 6x − 12 = 14 + 2x step 2; 6x − 7 = 2(6 + x + 4) step 3; 5x − 2x = 14 − 7 step 3; 5x + 2x = 14 + 7 11. (07.06 lc) which statement is true about the equation fraction 3 over 4z = fraction 1 over 4z − 3 + 5? (5 points) it has no solution. it has one solution it has two solutions. it has infinitely many solutions. 12. (07.06 mc) what is the solution to the equation 1.6m − 4.8 = −1.6m? (5 points) m = 0.5 m = 0.7 m = 1.5 m = 3

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Mathematics, 26.07.2019 16:00, hjohnere1

30 points for full answer. 1. solve the equation: (x-4)^2-28=8 show your work. don’t forget that you will get two answers. use the square root property to solve 2. this is josh’s solution for the equation : step 1: x² - 6x – 7 = 0 step 2: x² - 6x = 7 step 3: x² - 6x + 9 = 7 + 9 step 4: (x – 3)² = 16 step 5: x – 3 = 16 step 6: x = 19 step 7: x – 3 = -16 step 8: x = -13 where did josh make his mistake? what are the solutions to this equation? show all of your work. this problem is solved using completing the square. the mistake was in step here is how to correctly solve the equation:

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Mathematics, 26.07.2019 20:00, brinson1k

1. solve the equation: (x-4)^2 -28 = 8 show your work. don’t forget that you will get two answers. 2. this is josh’s solution for the equation : step 1: x² - 6x – 7 = 0 step 2: x² - 6x = 7 step 3: x² - 6x + 9 = 7 + 9 step 4: (x – 3)² = 16 step 5: x – 3 = 16 step 6: x = 19 step 7: x – 3 = -16 step 8: x = -13 where did josh make his mistake? what are the solutions to this equation? show all of your work. this problem is solved using completing the square.the mistake was in step here is how to correctly solve the equation: 3. use the quadratic formula to solve x^2 - 4x + 3 show your work.

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Mathematics, 22.09.2019 04:10, davidaagurto

1. what is the value of x in the equation –6 + x = –3? (5 points) –9 –3 3 9 2. how many solutions does the equation –2a + 2a + 7 = 8 have? (5 points) one two none infinitely many 3. what is the value of y in the equation 2(2y – 16) = 0? (5 points) 4 6 8 9 4. how many solutions does the equation 5p – 4p – 8 = –2 + 3 have? (5 points) one two none infinitely many 5. the steps below show the incomplete solution to find the value of n for the equation 4n – 2n + 4 = –1 + 17: step 1: 4n – 2n + 4 = –1 + 17 step 2: 4n – 2n + 4 = 16 step 3: 2n + 4 = 16 which of these is most likely the next step? (5 points) 2n = 12 2n = 4 2n = 8 2n = 20 6. what is the value of z in the equation 2(4z – 3 – 1) = 166 – 46? (5 points) 14 15 16 17 7. what is the value of x in the equation –x = 3 – 4x + 6? (5 points) –9 –3 3 9 8. how many solutions does the equation 4n + 6 = 4 + 2 + 4n have? (5 points) two many none one 9. which of these is a simplified form of the equation 6y + 4 = 8 + 2y + 2y? (5 points) 6y = 8 10y = 12 2y = 4 4y = 12 10. the work of a student to solve the equation 3(2x – 4) = 8 + 2x + 6 is shown below: step 1: 3(2x – 4) = 8 + 2x + 6 step 2: 5x – 7 = 14 + 2x step 3: 5x – 2x = 14 + 7 step 4: 3x = 21 step 5: x = 7 in which step did the student first make an error and what is the correct step? (5 points) step 2; 6x – 12 = 14 + 2x step 2; 6x – 7 = 2(6 + x + 4) step 3; 5x – 2x = 14 – 7 step 3; 5x + 2x = 14 + 7 11. which statement is true about the equation z – z + 1 = z + 1? (5 points) it has no solution. it has one solution. it has two solutions. it has infinitely many solutions. 12. what is the solution to the equation 3.6m – 2.7 = –1.8m? (5 points) m = 0.25 m = 0.5 m = 1.25 m = 1.5

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What are the solution of the equation x^2- 4x -32 = 0 ? show your work and justify each step....

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