Let f(x) = 0.8x^3 + 1.9x^2- 2.7x + 23 represent the number of people in a country where x is the number of years after 1998 and f(x) represent the number of people in thousands. Include units in your answer where appropriate. (round to the nearest tenth if necessary)

a) How many people were there in the year 1998?

b) Find f(15)

c) x = 15 represents the year

d) Write a complete sentence interpreting f(19) in context to the problem.

The statements below can be used to prove that the triangles are similar. ? △abc ~ △xyz by the sss similarity theorem. which mathematical statement is missing? ∠b ≅ ∠y ∠b ≅ ∠z

The diameter of the moon is about 3500 km. approximate the surface area of the moon using the formula for the surface area of a sphere, s = 4πr2. write your answer in scientific notation.

Georgia needs to buy flea treatment for her dog. pet store 1 is offering the flea treatment for 40 percent off plus an additional 25 percent off their regular price of $33. pet store 2 is offering the same flea treatment for 55 percent off plus an additional 5 percent off their regular price of $34. which location is offering the better price and how much cheaper is it? the flea treatment is $0.31 cheaper at pet store 2. the flea treatment is $1.05 cheaper at pet store 2. the flea treatment is $2.05 cheaper at pet store 1. the flea treatment is $2.36 cheaper at pet store 1.