2. the cosine curve below represents the amount of precipitation by season in a region of the

savannah of africa. the highest average amount of precipitation is 170 cm/month in the

rainy season, but it goes down to 2 cm/month in the dry season. based on the values, what

represents the amplitude of this cosine function?

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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