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anonymous

  • one year ago

What is the value of the expression when a = 5 and b = 3? 4a ^ 2 - 5b^2 A. 55 B. 74 C. 81 D. 145

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  1. anonymous
    • one year ago
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    @Black_ninja123

  2. anonymous
    • one year ago
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    A- you just plug in the numbers for a and b

  3. Black_ninja123
    • one year ago
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    what is 4*5^2

  4. anonymous
    • one year ago
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    100

  5. Black_ninja123
    • one year ago
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    Correct what is 5*3^2

  6. anonymous
    • one year ago
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    45 I'm pretty sure

  7. Black_ninja123
    • one year ago
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    Now add both numbers

  8. anonymous
    • one year ago
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    145 yes?

  9. Black_ninja123
    • one year ago
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    Yes

  10. anonymous
    • one year ago
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    Thanks I passed.

  11. anonymous
    • one year ago
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    but youre not adding the equation says your subtrating

  12. anonymous
    • one year ago
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    It's fine that was the last one

  13. anonymous
    • one year ago
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    It wasn't going to affect anything really just some homework

  14. Black_ninja123
    • one year ago
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    Oh subtract 100- 45

  15. anonymous
    • one year ago
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    ok thanks

  16. Black_ninja123
    • one year ago
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    Double check your other problems to see if you used the right sign

  17. anonymous
    • one year ago
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    It was an online test I passed by only missing one and no re trys But as long as I passed it's fine

  18. Black_ninja123
    • one year ago
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    Ok which one did you miss?

  19. anonymous
    • one year ago
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    The last one subtraction it was nothing that would affect my grade or the test.

  20. anonymous
    • one year ago
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    1 missed out of 20

  21. Black_ninja123
    • one year ago
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    Ok

  22. Black_ninja123
    • one year ago
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    I gtg cya

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spraguer (Moderator)
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