HELPPP FAST PLS Select the correct answer. Which expression is equivalent to cos(4x) + cos(2x)?
O A. 2cos(3x)cos e
OB. -2sin(3x)sint
OC. 2sin(3x)sins
OD. -2cos(3x)cost

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points

Write the equation in logarithmic form e^x=403.429