Solve the trigonometric equations analytically: 1.) 4 tan x − sec2 x = 0 (For 0 ≤ x≤ 2π)

2.) sin 4 − cos 2 = 0 (For 0 ≤ x≤ 2π)

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The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq

Jane has 5 nickels.john has 3 dimes.jane says she has a greater amount of money.with the information given,is she correct?