One side of a triangle is twice as long as the second side. the remaining side is 4 cm greater than the second side. the perimeter of the triangle is 24 cm. find the length of each side of the triangle.

a. label each side in terms of the second side

b. write a formula for the perimeter of the triangle in terms of the second side

c. use the formula to find the length of each side of the triangle

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