The small square is 4x 4 units in length, the medium square is 7x 7 units in length and the large square is 8 x 8 units in length. Is the dark triangle a right triangle? Explain your answer.

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?

Pls what is the decimal equivalent of 5 over 9? select one: a. 0 point 5 bar over top of 5 b. 0 point 6 bar over top of 6 c. 0 point 8 bar over top of 8 d. 0 point 9 bar over top of 9

Given the equation −4  = 12, solve for x and identify if it is an extraneous solution.