exam
Maths Puzzle
Numerical Ability
The volume of a larger prism is 168 cubic cm. If the prisms are similar with linear ratio of 3:2, what is the volume of the smaller prism?
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exam Other Question
If f(x) = 7x^5 - 3, then f ^-1(x) =
a. [(x + 7)/5]1/3
b. [(x + 3)/5]1/7
c. [(x + 5)/7]1/3
d. [(x + 7)/3]1/5
e. [(x + 3)/7]1/5
f. [(x + 5)/3]1/7
g. none of these
Determine whether the following pairs are invers of eachother
a. f9x0=8x-7 and g(x)=x+8/7
b. f(x)= 1/x and g(x)= 1/x
c. f(x)= 2x+3/x-1 and g(x)=x+3/x-2