Math! Please Help!

1. What is the simplified form of (–3x^3y^2)(5xy^–1)?

I think it is 15x^4y

2. What is the simplified form of –9m^–2n^5 × 2m^–3n^–6?

I have no idea on this one. :/

3. A rectangular pasture has a fence around the perimeter. The length of the fence is 16x^7 and the width is 48x^4. What is the area of the pasture?

Agian IDK

4. What is the simplified form of (3.25 × 10^3)(7.8 × 10^6) written in scientific notation?

2.535 x 10^10 maybe?

5. The size of a certain cell is 2.5 × 10^–9 m. Another cell is 1.5 × 10^3 times larger. How large is the larger cell in scientific notation?

I think 4 x 10^-27

BTW, Please tell me the right anwsers on the ones i missed. I have tried to do this. Thanks!

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  1. Do you guys need the choices?

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  2. Please help me =(

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  3. #1
    -15x^4y

    #2
    –9m^–2n^5 × 2m^–3n^–6?
    = -18m^-5 n^-1
    or
    -18/(m^5n)

    #3 area = length x width
    = (16x^7)(48x^4)
    = 768 x^11

    #4 correct

    #5
    2.5 × 10^–9 x 1.5 × 10^3
    = 3.75 x 10^-6

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  4. I don't see any math tutors online right now. You need to have patience ... and NEVER post anything that is "urgent" or "right now"!! Tutors here are volunteers, and they check in whenever they have time.

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  5. Ahhh, Reiny came in. Excellent!

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  6. okay thanks for tips and thanks for helping!

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  7. simplify 3-5n/9(1-n)*27n+1

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  8. Reiny got it right

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  9. 1. C
    2. B
    3. C
    4. A
    5. D

    100% correct. Thanks for helping me double check my answers.

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  10. Anonymous GACA is 100% right

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  11. GACA is riight. just took the quiz

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  12. Thank you!!

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  13. That is wrong

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  14. GACA Is 100000000% right thank you so much !!!! I have D in math this will help thank you ! This was just to check my answers btw

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  15. Thanks GACA!!!

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  16. same here GACA 100% for Multiplying Powers With the Same Base QC.

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  17. B
    C
    A
    D
    C

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  18. Olivia, is that for conexxus

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  19. @Olivia those answers are wrong, to everyone else the answers by GACA are correct.

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  20. thanks homie^

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  21. Ring ding dong ring a ding ding ding dong

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  22. c
    b
    c
    a
    d
    connections lesson 3 unit 3

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  23. Thank you Gaca, you grade saver <3<3

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  24. GACA is correct. 5/5 100%

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  25. i have 6 questions tho

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  26. If you have 6 it’s o
    C-15x^4y
    B- -18/m^5n
    C- 768x^11
    A-2.535 x 10^10
    D- 3.75 x 10^-6m
    B- 1.62 x 10^9

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  27. Number 6 for connexus studens isn't B, Its C

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  28. Yeah I got a 6/7 with I don't know's answers.
    The asnwers for me were
    C
    B
    C
    A
    D
    C

    Hope this helps

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  29. 5/6*

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  30. Anonymous GACA is correct...don't use anyone else's answers...

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  31. Gaca is right I swear on my puppy

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  32. GACA is right i got 5/5 100% on my quick check

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  33. Lesson 3: Multiplying Powers with the Same Base

    Algebra 1 B Unit 2: Exponents and Exponential Functions

    Lesson 3, Unit 2.

    Multiplying Powers with the Same Base:

    1. What is the simplified form of (-3x^3y^2)(5xy^-1)? (1 point)

    (Circle) 15x^2/y^2

    (Circle) -15x^3y^2

    (Filled Circle) -15x^4y

    (Circle) 15x^4y

    2. What is the simplified form of -9m^-2n^5 x 2m^-3n^-6? (1 point)

    (Circle) -18m^5n

    (Filled Circle) -18/m^5n

    (Circle) -18m^6/n^30

    (Circle) -18m^6n^30

    3. A rectangular pasture has a fence around the perimeter. The length of the fence is 16x^7 and the width is 48^4. What is the area of the pasture? (1 point)

    (Circle) 3x^3

    (Circle) 128x^11

    (Filled Circle) 768x^11

    (Circle) 768x^28

    4. What is the simplified form of (3.25 x 10^3)(7.8 x 10^6) written in scientific notation? (1 point)

    (Filled Circle) 2.535 x 10^10

    (Circle) 2.535 x 10^18

    (Circle) 2.535 x 10^19

    (Circle) 25.25 x 10^9

    5. The size of a certain cell is 2.5 x 10^-9 m. Another cell is 1.5 x 10^3 times larger. How large is the larger cell in scientific notation? (1 point)

    (Circle) 4 x 10^-27m

    (Circle) 4 x 10^-12m

    (Circle) 3.75 x 10^6m

    (Filled Circle) 2.75 x 10^-6m

    Word Answers:

    1. -15x^4y

    2. -18/m^5n

    3. 768x^11

    4. 2.535 x 10^10

    5. 2.75 x 10^-6m

    Letter Answers:

    1. C

    2. B

    3. C

    4. A

    5. D

    You're welcome. ;3

    By the way! Go show Anonymous GACA love and if it wasn't for Anonymous GACA answers I wouldn't have passed so, thank you so much Anonymous GACA. <3

    Posted on & when:

    4:13 Pm
    2/3/2020

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  34. Unit:2 Lesson:3 Quick Check

    1. C
    2. B
    3. C
    4. A
    5.D

    Valid: 2/14/2020 16:24/ 4:24 PM
    Ratpack for life.

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  35. Bobby is right!

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  36. Ight imma fuhk wit cha🤝

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  37. Be careful of these lists of answers without explanations. Sometimes kids deliberately post wrong answers. Sometimes teachers and/or test publishers mix the questions and answer choices up. Sometimes they change them completely!

    Be aware!

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    Writeacher
  38. The real answers are c d a b b
    The others are wrong

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  39. ANON GACA is still correct for 2021

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  40. Answer for unit 2 lesson 2 quick check
    C.
    B.
    C.
    A.
    D.

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  41. so cool

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  42. Thank you GACA

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  43. They are scrambled to read it carefully.
    –15x^4y

    2.535 × 1010

    -18/m^5n

    .768x11

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  44. Katy is %100 if you got 6 questions :)

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