Adding and Subtracting Polynomials: Mastery Test Which sum or difference is modeled by the algebra tiles?
-X2
1
-X
-X2
-X
A.
(-x2 - 2x+4)-(x+ 2x+ 1) =-2x2 - 4x+3
B. (x2 - 2x+4)+(+*+- 2x+ 1) = -2x2 - 4x+3
C. (x2 - 2x+4)-(x2 - 2x - 1) = -2x2 - 4x+3
(-x2 - 2x + 4) + (-x2 + 2x + 1) = -2x2 - 4x + 3
D.

What are the coordinates of the point is 1/4 of the way from a (-6, -3) to b (6, 1)? a. (-3, -2) b. (0, -2) c. (-1, 0) d. (3, 2)

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x