exam
Maths Puzzle
Numerical Ability
One number is 3 more than half of a second number. If the average of the two numbers is 15 1/2, find the smaller of the two numbers.
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exam Other Question
A researcher randomly selects and interviews fifty male and fifty female teachers. What sampling technique is used?
a. cluster
b. stratified
c. random
d. systematic
e. convenience
Please help me with this question:
What is the equation of a line, g(x), that is perpendicular to f(x)=1/2x+2 and passes through (0,2)?
a) g(x)=-4x+2
b) g(x)=-4x-2
c) g(x)=-4x-8
d) g(x) can not be determined with this information