Convert y = 7x2 - 56x - 21 to vertex form by completing the square. Show each step for full credit.

True or false? a circle could be circumscribed about the quadrilateral below.

According to the data set, where should the upper quartile line of the box plot be placed?

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96