On a coordinate plane, the center of circle P is at the point (2,15). Point M is located on the circle at (7,3). Which equation describes circle P?

A. (x+2)^2+(y+15)^2=13
B. (x-2)^2+(y-15)^2=13
C. (x+2)^2+(y+15)^2=169
D. (x-2+)^2+(y-15)^2=169

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

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.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)