BALLOON Treyvon is standing 9 yards from the base of a hill that has a slope of . He throws a water balloon from a height of 2 yards. Its path is modeled by h (x) = -0. 1x2 +0. 8x + 2, where h is the height of the balloon in yards
and x is the distance the balloon travels in yards.
E
a. Write a polynomial equation to represent the situation.

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?

Afarmer has 5 times as many cows as pigs. the farmer only has cows and pigs, and he has 168 animals. how many cows does he have?