If sin(42°) = 0.6691, then the cos(x°) = 0.6691, where x is the measure of an acute angle. Enter the value of x that makes the equation, cos(x°) = 0.6691, true.

x=?°

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the answer is y = 11.54

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change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock

391.6 is the correct answer