Amodel is created to show 5 thousands blocks, 4 hundreds blocks, and 9 ones blocks. how would this number be written in standard form?

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.