Which second degree polynomial function has a leading coefficient of -1 and root 4 with multiplicity 2?
a f(x) = -x- - 8x - 16
b f(x) = -x2 + 8x - 16
c f() = -x2 - 8x + 16
d f(x) = -x2 + 8x + 16

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Agroup of randomly selected apple valley high school students were asked to pick their favorite gym class. the table below shows the results of the survey. there are 528 students at apple valley high school. gym class number of students racquet sports 1 team sports 9 track and field 17 bowling 13 based on the data, what is the most reasonable estimate for the number of students at apple valley high school whose favorite gym class is bowling? choose 1 answer a. 9 b. 13 c. 119 d. 172

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle. he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field