1). linear combination (show work)

3x +2y = −4

4x − y= 13

2). graph

y= 1/2 x + 3

-3x+y=-2

How many solutions does the nonlinear system of equations graphed bellow have?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g