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Find the term independent of x in the expansion (4x3 +1/2 x) raised to the power eight


Find the coefficient of X2 and x 3 in the expansion of (2-x)raised to the power of 6(


Make the subject of the formula S=ut+1/2 at2


(25 x 9) + (75 x 9) =
William sunk 25% of the shots he made on the basket. If he threw 80 shots, how many did he miss?

Suppose you have to distribute the numbers {1; 2; 3; ... ; 2n-1;2n} over n buckets. Show that there will always be at least one bucket with its sum of numbers to be >=2n+1.


A scientist begins with 250 grams of a radioactive substance. After 250 minutes, the sample has decayed to 16 grams. Write an exponential equation
f(t)
representing this situation. (Let f be the amount of radioactive substance in grams and t be the time in minutes.)
To the nearest minute what is the half life?
A machine uses 2.5 litres of fuel each hour it runs. Its fuel tank was filled with 10 L, but 1.5 L have already been used. How many more hours will the machine run?
increase 30 by 10%
Witch quadratic equation has roots 7 and -2/3
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