Select three ratios that are equivalent to 16: 12. Choose 3 answers:
A-8:6
B-32:24
C-4:3
D-12:8
E-24:16

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)

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.

If value of cos330° is √3/2 then find tan165°.