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Mathematics, 17.10.2020 05:01 KassandraVillegas

The height of a tennis ball tossed into the air is modeled by h(x) = 40x – 16x 2, where x is elapsed time in seconds. During what time interval will the tennis ball be at least 15 feet above the ground?

x > 0.5 seconds and x > 2.04 seconds
x > 0.5 seconds and x ≀ 2.04 seconds
x β‰₯ 0.5 seconds and x > 2.04 seconds
x β‰₯ 0.5 seconds and x ≀ 2.04 seconds

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