The expression x[(y – w) + z)] is equivalent to:
a xy-xw + xx
b xy-w+z
c xy -xw-xz
d xy-w+xz
e xy+xw+xz

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable