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Maths Puzzle
Numerical Ability
please help me solve these- equation: {{{ 4/5x=3 3/4}}} and {{{ 1.25n=8}}} and {{{ n/1.5=4.2}}} please explain each one. i need examples on how each problem was solve.
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The problem goes like this....
Solve Equation
log4 (x^2 - 4) - log4 (x + 2) = 2
How would I figure out what the coordinates of the vertex is for y = x^2 - 4x + 5. I came up with the answer of (2,1). If this is correct thank you but if not please break it down