Math check please

1. Solve the system of equations
y=2x^2-3
y=3x-1

a)no solution
b)(-1/2,5),(2,-5/2)
c)(-1/2,-5/2),(2,5)****
d)(1/2,5/2),(2,5)

2. How many real number solutions are there to the equation 0=-3x^2+x-4?
a)0 *****
b)1
c)2
d)3

3.solve the equation by completing the square. if necessary round to the nearest hundredth. x^2-18x=19

a)1;19
b)-1;19****
c)3;6
d)-3;1

4. Solve x^2-81=0

a)0
b)-9
c)-9,9****
d)9

  1. 👍 9
  2. 👎 0
  3. 👁 5,164
  1. Nevermind I got them all correct

    1. 👍 2
    2. 👎 1
  2. All are correct u are realy good

    1. 👍 2
    2. 👎 0
  3. 1.C
    2.A
    3.B
    4.C

    1. 👍 6
    2. 👎 1
  4. All correct

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    2. 👎 0
  5. OKCA Algebra 1 B
    1)C. (-1/2, -5/4), (2, 5)
    2)A. 0
    3)B. (-1; 19)
    4)C. (-9, 9)
    5)C. Exponential
    Match the equation to its corresponding graph
    6)A
    7)D
    8)C
    9)B
    10) ESSAY (3pt)
    ****Answers could be different depending on state and which course you're taking. These were the correct answers for me.****

    1. 👍 36
    2. 👎 0
  6. @N/a is 100% correct, but there's a typo in the 1st answer. it's (-1/2, -5/2), (2, 5)

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  7. Yes

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  8. My answers are wrong sorry...

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    2. 👎 1
  9. @N/a Apparently, 5 different people say otherwise...

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  10. N/a is correct for unit 5 lesson 8!! thx n/a

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  11. wait, unit 5? isnt this unit 4..?

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    2. 👎 1
  12. what lesson is this for

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  13. I think a teacher or another student renamed themselves as N/a and said the answers were wrong so no one cheats, so don't worry the answers are right.

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    2. 👎 0
  14. Stop cheating guys it does not benefit you what so ever.

    1. 👍 1
    2. 👎 11

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