exam
Maths Puzzle
Numerical Ability
Factor 50x^3-90x^2
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exam Other Question
In the design of a bridge, an engineer determines that four fewer 18-m girders are needed for the span length than 15-m girders. How many 18-m girders are needed?
Which of the following defines what a conic section is?
(a) A curve made by intersecting a cone with a plane.
(b) A curve made by all the points a fixed distance from a certain