X^2-8x+21 determine the values of h an k that make the experssion (x-h)^2 +k

If angle 2=3x +1 and angle 3=2x +4what is angle 2

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities