Ms Skloot gave the class the quadratic function f(x)=2x^2+10x+3. a) State two different methods a student in her class could use to solve the equation f(x)=0.
b) Use one of the methods stated in part a to solve f(x)=0 for x, to the nearest tenth.

27 is what percent of 108? 27 is % of 108

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%