Quadratic functions q and z aré graphed on the same coordinate grid. The vertex
of the graph of q is 7 units below the
vertex of the graph of z. Which pair of
functions could have been used to create
the graphs of q and z?
A 9(x) = 7x2 and z(x) = x?
B 9(x) = x? - 7 and z(x) = x2
C 90x) = x² + 7 and z(x) = x2
D 9(x) = -7x' and z(x) = x?

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)

Which of these tools or constructions is used to inscribe a hexagon inside a circle?