Suppose that X is a random variable with mean μ= 11.5 and standard deviation σ= 3.1, and that Y is a random variable with mean μ= 11.5 and standard deviation σ= 3. What is E(X+Y)? If necessary, round your answer to one decimal place.

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?

Which rectangle if translated 6 units right and 16 units down and the rotated 90° clockwise about the point (4, -11) will result in rectangle e?