Determine the area under the standard normal curve that lies to the left of (a) upper z equals 0.02 comma (b) upper z equals negative 0.19, (c) upper z equals negative 0.38, and (d) upper z equals negative 1.74

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if