exam
Maths Puzzle
Numerical Ability
im stuck on these 2 problems. thanks for your help.
divide and if possible simplify.
problem 1 3y+15/y^7 / y+5/y^2
problem 2 x^2-y^2/4x+4y / 3y-3x/12x^2
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exam Other Question
This question is not from a text book.
I am trying to find the standard deviation for this set of data. 75,65,50,90,80,60,70,85,80,85. The answer that i came up with is 42400 divide by 10. is this the way how?
Thank you so much for your help.
State the domain of the following
m(x)= 5/x^2+9