You're on a residential construction team doing roofing. the pitch of a roof is 1 / 3 rise over run. find the rise if the horizontal run of the roof is 15 ft 3/4 in.

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)

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m