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3 years ago

12

Drusilla replaces the light bulb in the hall closet every 9 months and replaces the air filter every 6 months she just replaced

both items this month after how many months will she replace both the light bulb and the air filter? Select all that apply

1 answer:

Vlad1618 [11]3 years ago

6 0

Drusilla will replace both items in 18 months and 36 months.

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sweet-ann [11.9K]

Answer:

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Step-by-step explanation:

Given

$tan\theta = 3$

Required

Find

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Using tan rule

$tan(\theta + \pi) = \frac{tan\theta + tan\pi}{1 - tan\theta tan\pi}$

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Step-by-step explanation:

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Step-by-step explanation:

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