A square tabletop has side lengths of (2x − 7) units. Enter a polynomial that represents the area of the tabletop.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

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