exam
Maths Puzzle
Numerical Ability
A car travels 100 mph for the first half of a 400 mile race. How fast must the car go to average 200 mph?
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exam Other Question
decide all values of b in the following equations that will give one or more real number solutions.
(A) 3x^2+bx-3=0
(B) 5x^2+bx+1=0
(c) -3x^2+bx-3=0
(D) Write a rule for ju
I have to combine if possible no calculator or table of roots to be used...Can you help me please? Thanks...:)
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Number 20
6square5y - square root 20y