Suppose a triangle has side a, b and c, and let e be the angle opposite the side of length a. If cose< 0, what must be true?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

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

Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?