exam Maths Puzzle Numerical Ability

The average amount customers at a certain grocery store spend yearly is $636.55. Assume the variability is normally distributed. If the standard deviation is $89.46, find the proba

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exam Other Question
Graph each function. First find the vertex and axis of symmetry

f(x)=-x^2+x-1


g(x)=2x^2+4x-1


y=x^2+10x+25 M is the midpoint of QR. Q has coodinates (-3,5) and M has coordinates (7,-9) find the coordinates of R.