An architect is designing a water fountain for a park. she uses the given function to model the water jets flowing from the fountain's nozzles, where h(x) gives the height of the water jet, in feet, x feet from its starting point. select the two adjacent columns that show an interval with an average rate of change of -0.3.

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step-by-step explanation:

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."