What is the end behavior of f(x) = -23 + 4,2 – 4? A. as x → 00, f(x) → as x + -00, f(x) → 00
B. as 2 00, f(x) → as r → -00, f(x) → -00
c. as 27 00, f(x) + - as x = -00, f(x) = -00
D. as x → , f(x) → - as x → -00, f(x) = 0

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3