Which quadratic function in standard form has the values a = -3.5, b = 2.7, and c= -8.2?
f(x) = 2.7x2 -8.2x-3.5
f(x) = 2.7x2 - 3.5x - 8.2
Of(x) = -3.5x2 - 8.2x+ 2.7
flx) = -3.5x2 + 2.7x - 8.2

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables

Atriangle has side lengths of x, x+11, and 3x+5. what is the perimeter?

Ineed to know how to write question one in mathematical terms