Three polynomials are factored below, but some coefficients and constants are missing. All of the missing values of a, b, c, and d are integers.
1. x2 + 2x - 15 = (ax + b)(cx + d)
2.2r? + 6x2 - 20x = 2x(ax + b)(x + d)
3.9x2 + 21x + 6 = (ax + b)(cx + d)
Fill in the table with the missing values of a, b, c, and d.
b
d
a
с
1. 1
-3
2.1
3.
6

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?