Can you make the area of your shape go up but the perimeter go down?

Which shows the image of rectangle abcd after the rotation (x, y) → (–y, x)?

Solve the system of equations. y= 2x y= x^2 - 15

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.