Simplify the expression. 14 + (-3) -3/7j - 6/7j + 6

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

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

Write the slope intercept equation for line ab.