exam
Maths Puzzle
Numerical Ability
how many liters of a 10% acid solution must be mixed with a 50% acid solution in order to obtain 20 liters of a 30% solution?
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exam Other Question
What is the slope of a line that is perpendicular to the line that passes through the points (4,7) and (9,3)?
A. -4/5 B. -5/4 C. 4/5 D. 5/4
What is the domain of standard exponential functions?
a. x (0, ∞)
b. x (-∞, ∞)
c. x [0, ∞)
d. x (0, 1) (1, 2) (2, 3) (3, 4) (4, 5) .....