exam
Maths Puzzle
Numerical Ability
give the standard form of the equation of the line that is perpendicular to
y = 2/3x - 7 and contains 9-6, -1).
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exam Other Question
The distance from Philadelphia to Sea Isle City is 100 miles. The tires on the car have a radius of 14inches. How many revolutions of each tire occured on the trip?
What is the value of b if 2x^2 + bx + 8 has a discriminant of -15 ?
i said 7 but my teacher marked it wrong !!! I think I should have said -7 or +7 ,can someone please expain this to me ?