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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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53 answers

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

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

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  2. #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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  3. Ahhh, Reiny came in. Excellent!

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  4. 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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  5. Anonymous GACA is 100% right

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

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  7. GACA is riight. just took the quiz

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  8. 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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  9. 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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  10. okay thanks for tips and thanks for helping!

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

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  12. 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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  13. Do you guys need the choices?

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  14. Thank you!!

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  15. Reiny got it right

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  16. thanks homie^

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

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

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

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  20. Bobby is right!

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