E(t) models the daily amount of energy (in kilojoules, kJ) that a solar panel in Pago Pago generates, t days after the autumn equinox. Here, t is entered in radians.
270
E(t) = 624 sin
t + 8736
365
What is the first day after the autumn equinox that the solar panel generates 8400 kJ?
Round your final answer to the nearest whole day.
Hi

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

Someone answer asap for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

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