When your have the error force and error theta. how do you find error force for horizontal?

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent

What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21