The library is 11 kilometers south of Bryce's home. The school is 11 kilometers east of Bryce's home. How many kilometers is the library from the school? Round to the nearest tenth if necessary.​

X+y=-4 x-y=2 use elimination with adding and subtraction

The discrete random variables x and y take integer values with joint probability distribution given by f (x,y) = a(y−x+1) 0 ≤ x ≤ y ≤ 2 or =0 otherwise, where a is a constant. 1 tabulate the distribution and show that a = 0.1.2 find the marginal distributions of x and y. 3 calculate cov(x,y).4 state, giving a reason, whether x and y are independent. 5 calculate e(y|x = 1).

The percent of change from 12 to 15