exam
Maths Puzzle
Numerical Ability
please help :)you have a model train car that is 10 in long and has a scale of 1 in to 5 ft. how long is the acual train?
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exam Other Question
f(x)= 3-4x
Find f(a+h)
I need helping to solve using row operations on each system:
x+yz-3z=1
2x-y+z=9
3x+y-4z=8