What is the equation of a horizontal ellipse with a center at point (-2,4), a major axis that is 8 units long, and a minor axis that is 4 units long? 1.)(x+2)2/8+(y-4)2/4=1..2.)(x+2)2/4 +(y-4)2/16=1..3)..(x+2)2/16+(y-4)2/ 4=1..4)..(x-2)2/16+(y+4)2/4=1

Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =

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