Marnie solved the proportion StartFraction 150 over 170 EndFraction = StartFraction x over 510 EndFraction to find the value of x in the enlarged parallelogram. A smaller parallelogram has a bottom side length of 170 centimeters and left side length of 150 centimeters. A larger parallelogram has a bottom side length of 510 centimeters and left side length of x centimeters.
Not drawn to scale

What is the value of x?
x = 255
x = 300
x = 340
x = 450

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