Choose all of the correct statements.

6.3 × 107 is approximately 20 times larger than 3.1 × 108.
19.6 × 106 is approximately 65 times larger than 3.0 × 105.
8.6 × 10−6 is approximately 41 times larger than 2.1 × 10−5.
5.9 × 10−6 is approximately 28 times larger than 2.1 × 10−7.

Assume cd | ab are parallel. find m2. a) x= 50° (b) x = 70° c) x = 30° d) x = 60

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

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 florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.