exam
Maths Puzzle
Numerical Ability
a car uses 6 gallons of gasolonie on a trip of 126miles. at that rate, how much gasoline will a trip of 294 miles require?
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exam Other Question
To solve 1/x-3+ 1/x+3 = 10/x^2-9, which step would result?
I got: (x+3)+(x+3) = 10
Is this correct?
Thanks~
Science and medicine: The combined resistance of two resistors R1 and R2 in a parallel circuit is given by the formula:
RT= 1/1/R1 +1/R2
Simplify the formula.