Which of the following laws is described in the situation below?
you are given the following true statement:
if angles a and b are vertical, then they are congruent.
if two angles are vertical then they are congruent. therefore, since angles a and b are vertical, then they are congruent.

law of detachment

law of syllogism

Two lines parallel to a third line are parallel to each other. always sometimes or never

Which of the following is an equation of a line parallel to the equation y=4x+1?

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