Apollo 8 orbited the moon in a circular orbit. its average altitude was 185 km above the moon's surface. create an equation to model the path of apollo 8 using the center of the moon as the origin. note that the radius of the moon is 1,737 km. a. x^2+y^2=34,225 b. x^2+y^2=2,408,704 c. x^2+y^2=3,017,169 d. x^2+y^2=3,694,084

Why do interests rates on loans to be lower in a weak economy than in a strong one

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.