What is the following sum?

4 (RootIndex 5 StartRoot x squared y EndRoot) + 3 (RootIndex 5 StartRoot x squared y EndRoot)
7 (RootIndex 10 StartRoot x squared y EndRoot)
7 (RootIndex 10 StartRoot x Superscript 4 Baseline y squared EndRoot)
7 (RootIndex 5 StartRoot x squared y EndRoot)
7 (RootIndex 5 StartRoot x Superscript 4 Baseline y squared EndRoot)

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120