I was on zoum today and I thought my camera was off but the whole time it was on because I forgot to turn it off from my other class I was doing self masterdating and every one saw me now I’m embarrassed i left class when I realize now I scared to join tomorrow also me crying me in pic

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.