Which of the system has only one solution? A. Y = x + 5 and Y = -3x + 6
B. Y = x + 2 and Y = x + 4
C. Y = abs(x - y) and Y = 0.2x + 1
D. Y = x2 – 1 and Y = 1.5x + 1

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.

Prove that 16^4-2^13-4^5 is divisible by 11.

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?