A seated normal adult breathes in and exhales every 4 seconds with a change 0.7 liter inhale and exhale. A normal adult will maintain a minimum of 1.35 liters during normal breathing. If you begin timing immediately following an exhale, then write a sinusoidal function that models the situation. How many liters will you have in the lungs at 3.5 seconds? At what time will you have 1.72 liters for the 4th time?

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step-by-step explanation:

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sine

step-by-step explanation:

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

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to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.