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    Hello, I am in Year 10. I need help with my maths homework with questions 3. a,b and 4. a,b,c. I have done the questions but I don't think they are right. I would really appreciate it if you could help, if you can't see any of the questions I'll gladly post them for you clearly. Thank you in advance.


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    Hello, I am in Year 10. I need help with my maths homework with questions 3. a,b and 4. a,b,c. I have done the questions but I don't think they are right. I would really appreciate it if you could help, if you can't see any of the questions I'll gladly post them for you clearly. Thank you in advance.


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    All of question 3 is correct, well done. 4.a is also correct. I can't read your answer to 4.b though. Your answer to question 4.c. is close, but why did you square root the D? The kt^2 term is one big chunk, you just need to subtract it from both sides. No need to square root!
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    (Original post by Chlorophile)
    All of question 3 is correct, well done. 4.a is also correct. I can't read your answer to 4.b though. Your answer to question 4.c. is close, but why did you square root the D? The kt^2 term is one big chunk, you just need to subtract it from both sides. No need to square root!
    Oh thank you very much x


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    Can someone please explain these questions to me, I still don't understand.

    1. Make u the subject of the formula
    D= ut+kt^2

    2. Work out the value of u


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    (Original post by BobbiBlue)
    Can someone please explain these questions to me, I still don't understand.

    1. Make u the subject of the formula
    D= ut+kt^2
    If you could do

    D = au + b

    Then you can do the question you asked
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    (Original post by TenOfThem)
    If you could do

    D = au + b

    Then you can do the question you asked
    I don't understand where the b has come from.


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    (Original post by BobbiBlue)
    I don't understand where the b has come from.
    I made a question up

    Are you saying that you would NOT be able to re-arrange D=au+b to give u as the subject?
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    More questions that I need explaining,

    3. A) Work out the value of a when p= 84 and r= 6.7 in the formula:
    P= πr + 2r + 2a
    B) Make R the subject.

    4. Expand and simplify (x-y)^2

    5. Rearrange a(q-c)=d to make q the subject

    6. Make h the subject of the formula d= square root of 3h/2

    7. The first five terms of a sequence are: 6, 11, 18, 27, 38
    Find an expression in terms of n for the nth term of this sequence.

    Sorry about all of this, I really appreciate your help.



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    (Original post by TenOfThem)
    I made a question up

    Are you saying that you would NOT be able to re-arrange D=au+b to give u as the subject?
    Oh right, yes I think I can do it. Is it d-b/a?


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    (Original post by BobbiBlue)
    Oh right, yes I think I can do it. Is it d-b/a?


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    With brackets, yes (d-b)/a


    Your question is virtually identical
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    (Original post by TenOfThem)
    With brackets, yes (d-b)/a


    Your question is virtually identical
    Oh yeah, thank you for making me see sense


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