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  1. B

    !!help the letters of the word tuesday are arranged in a row what is the probability

    !!help the letters of the word tuesday are arranged in a row what is the probability the vowels are together and the letter "T" occupies the first place?
  2. B

    What is the difference between addition and multiplication in this probability questi

    What is the difference between addition and multiplication in this probability question? I keep getting confused... A ID is made by choseing 3 letter from A-C inclusive and 2 digits from 1-2, The letters cannot repeat but the digits can be used more than once, how many different IDs can be...
  3. B

    What is Pr(A union Bcomplement) ?

    If Pr(A) = 0.68, Pr(B) =0.28, Pr(A uB)= 0.8 Pr(AintersectionB)=0.16 How do we find Pr(A union Bcomplement) ?
  4. B

    how to find the area?

    For any point p on the curve y= x^3 . Prove that the area under the curve is one quarter of the area of the rectangle ? I went this far into the question integrating between p and 0 y^1/3 dy = (3(p^4/3))/4 and is the area of the rectangle p^2?
  5. B

    Help How to solve ?

    A radar station tracks a jet fighter flying with constant speed. if radar station is considered to be at the origin. The fighter's starting position is 2i _8j+k and 1 minute later it is at 8i - 4j + 13k. The units are in kilometres. Find the point along the path where the path where the...
  6. B

    HELP! quick thermal chem question (Thankyou))

    Can I add the kj/mol and kj/gram together to get final answer. It seems the webpage implies it works by the working out??? Or its wrong and i need to convert the kj/gram to mols ? 33.30 grams of ice at 0.00 °C has heat added to it until steam at 150.0 °C results. Calculate the total energy...
  7. B

    Why is the average velocity of the particles greater in 1 mole of hydrogen gas at 25

    Why is the average velocity of the particles greater in 1 mole of hydrogen gas at 25 degrees C then 1 mole of water vapour at 25 degrees C?
  8. B

    how to differentiate this?

    How to differentiate this ? X^2 - 5/ root x ?
  9. B

    how to determine linearly dependence of vectors?

    How to determine if vectors a= -5j + k , b= 3i+4j-5k and c= 2i +j-3k are linearly dependent?? I tried addition of the three vectors = 0 but it didn't work?
  10. B

    Cross product?

    how to Find the cross product of (3, 180°) X (79, 25°) ?
  11. B

    Help! A parallelogram question?

    Help! A parallelogram question? If ABCD is a paralelogram with A(2,1,4), B(1,4,3) and C(1,0,2): Show that the area of the parallelogram is 8.12 sq units? and the coordinated of D is (0,1,3)??
  12. B

    Help! A parallelogram question?

    If ABCD is a paralelogram with A(2,1,4), B(1,4,3) and C(1,0,2): Show that the area of the parallelogram is 8.12 sq units? and the coordinated of S is (0,1,3)??
  13. B

    Help! How do we show/ solve this vector problem??

    Vectors & are defined in terms of , & as: = + ( + ) − (2 + ) = + (3 + 2) − (5 − 3) If = then show that: |1.25 + 5 + 6| = √46
  14. B

    Help! How do we show/ solve this vector problem??

    Vectors & are defined in terms of , & as: = + ( + ) − (2 + ) = + (3 + 2) − (5 − 3) If = then show that: |1.25 + 5 + 6| = √46
  15. B

    !!How do we give an example of the associativity property of scaler multiplication?

    !!How do we give an example of the associativity property of scaler multiplication (VECTORS)? With Diagrams?
  16. B

    How do we solve with ratios?

    How do we solve for x when it is in ratio? do we divide? or maybe some further factoring with the 8 and 16? x : 8^(2x-1) = 16^(x+3)
  17. B

    how to solve for x?

    how to solve for x? log2x(216) = x 2x is the base
  18. B

    How long would it take the investment to double in value?

    The information is in the attachment photo below :) How long would it take the investment to double in value? How to solve??
  19. B

    How to solve this ?? Is my method correct

    Many Victorians have been retiring and moving to Queensland, yet only some have come from Queensland to retire in Victoria. The government of Victoria wants to investigate the expected long- term transition using the following information. • 6000 Victorians moved to Queensland in 2009. •...
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