What is the tangent of the angle formed by the lines 2x + 3y = 5 and
x - 2y = 47​

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

The constant of proportionality is always the where k is the constant of proportionality. additionally, you can find the constant of proportionality by finding the ratio for any point onasap

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)