Subtract 5x-7y+6 from 3x-4y-2​

What is the y intercept of f(x)=(1/2)^x?

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?

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