exam
Maths Puzzle
Numerical Ability
Write the equation of the line which has y-intercept (0,5) and is perpendicular to the line with equation y=-3x+1.
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exam Other Question
Find the mean and the median.
-2, -7/4, 3/4, 4, 9
These are my choices. I came up with Mean 2, Median 3/4 but I am not positive.
Mean 2, Median 3/4
Mean 10, Median 2
Mean 2, Median 2
Mean 10, Median 3/4
Find the value of c so that the quadratic equation 2x^2+4x-c=0 has two equal real roots. Can someone please show me the steps for solving this?