Evaluate the integral from negative infinity to infinity of xe^(x^(2)) dx

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Which of the following are parts of a sphere

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles