High concentrations of carbon monoxide co can cause coma and possible death. the time required for a person to reach a cohb level capable of causing a coma can be approximated by the quadratic formula model t=.0002xsq - .316x +127.9, where t is the exposure time in hours necessary to reach this level and 500≤x≤800 is the amount of co present in the air in parts per million (ppm).

what is the exposure time when x = 610?

answer 9.6 hr i got this easy

estimate the concentration of co necessary to produce a coma in 6 hr.
this is the part i can’t find any on.

Let x = a + bi and y = c + di and z = f + gi. which statements are true?

Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 3 7 5 11 14 which of the following is a scatter diagrams accurately represents the data? what does the scatter diagram developed in part (a) indicate about the relationship between the two variables? try to approximate the relationship betwen x and y by drawing a straight line through the data. which of the following is a scatter diagrams accurately represents the data? develop the estimated regression equation by computing the values of b 0 and b 1 using equations (14.6) and (14.7) (to 1 decimal). = + x use the estimated regression equation to predict the value of y when x = 4 (to 1 decimal). =

Amayoral candidate would like to know her residents’ views on a tax on sugar drinks before the mayoral debates. she asks one thousand registered voters from both parties. these voters are an example of a census population convenience sample simple random sample