Confirm that the following properties of the greatest common divisor hold: (a) if ged(a, b) = 1 and cla, then ged(b, c) = 1. (b) if ged(a, b) = 1, then god(ac, b) = ged(c, b). (c) if ged(a, b) = 1 and c(a+b), then god(a, c) = ged(b, c) = 1.

What is the circumference of a circle with an area of 50.24 cm²?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.

Apossible wavelength for the color blue is 0.000000492 meter. which of the following is a reasonable estimate for this wavelength for the color blue? a. 5 × 10-6 m b. 5 × 107 m c. 5 × 10-7 m d. 5 × 106 m