Bob places a 18 foot ladder 6 feet from the base of his house. Find the nearest degree the measure of the angle the bottom of the ladder makes with the ground

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Which table shows a proportional relationship between miles traveled and gas used?

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